Bug reports
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Hi Charlie,
the good news is that I could reproduce and fix all the issues you have found (and more) but I could not finish building the new update today. I'll do my best to make it available during the weekend.
Thanks,
Attila
the good news is that I could reproduce and fix all the issues you have found (and more) but I could not finish building the new update today. I'll do my best to make it available during the weekend.
Thanks,
Attila
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
- KVRist
- 332 posts since 22 Feb, 2005
Hi Attila, thank you and much appreciated!
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Hi Charlie,
Syne v1.5.4 is available now with the following fixes:
Thank you for reporting these bugs!
Attila
Syne v1.5.4 is available now with the following fixes:
- Fixed issues with mono/legato mode, including a crashing bug
- Fixed issues with portamento
- Fixed crash when loading/unloading/loading the plug-in
- Other stability fixes
Thank you for reporting these bugs!
Attila
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
- KVRist
- 332 posts since 22 Feb, 2005
Thank you Attila, well done! Been working with it for an hour and it feels stable now. Just something else i noticed: The "waveform" module creates clicks on legato passages.
I usually work with the partial module and there the legato is smooth. The wavemorpher is also smooth. I also tried setting the various modules to sinewaves to hear the click better. So it seems only the Waveform module creates clicks and only on note overlaps with legato. (The voice mode: mono is clickfree)
Steps to reproduce: Just start a new Syne instance, select voice mode "mono legato", add a waveform module and play some legato.
Edit: The Decay module & Filter module does not work with legato mode?
I usually work with the partial module and there the legato is smooth. The wavemorpher is also smooth. I also tried setting the various modules to sinewaves to hear the click better. So it seems only the Waveform module creates clicks and only on note overlaps with legato. (The voice mode: mono is clickfree)
Steps to reproduce: Just start a new Syne instance, select voice mode "mono legato", add a waveform module and play some legato.
Edit: The Decay module & Filter module does not work with legato mode?
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Thank you, Charlie, I'll check these shortly.
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
- KVRist
- 77 posts since 15 Aug, 2020
I recently had to reinstall windows and used the link from my purchase email of rapidcomposer 5, but this lead to version 6. I had 5.1.2 installer on my external disk, which installed and registered correctly but when I try to check for updates I get an "error connecting to server" message. How do I get the latest version of 5 that I am licensed to use please?
-
- KVRAF
- 2150 posts since 15 May, 2017
And for me, same issue, when installing the VST3 does not install.. I get an error, if I ignore, I can get at least get the stand alone.
-
- KVRist
- 77 posts since 15 Aug, 2020
Is this the support forum or not?
-
- KVRist
- 410 posts since 9 Oct, 2013 from uk
I have seen the developer respond here on occasion, but for more formal support, try the direct email address (turn this into a sensible address):-
support at musicdevelopments dot com
Hope that helps.!
System 1 - Win11; i9 13900HK miniPC; 64Gb; Iris XE graphics; Cubase 15.0.10; Studio Pro v8.0.3;UR44 i/o
System 2 - Win10; i7 4790; 16Gb; GTX750Ti; Cubase v14.0.41; WLab Pro v12.0.51; StudioOne v6.6.4
System 2 - Win10; i7 4790; 16Gb; GTX750Ti; Cubase v14.0.41; WLab Pro v12.0.51; StudioOne v6.6.4
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Since March 11th, 2024, update checking stopped working in RapidComposer due to server configuration changes. It was fixed soon after this, so it works in newer versions.Lairyboy wrote: Fri Oct 10, 2025 5:15 pm I recently had to reinstall windows and used the link from my purchase email of rapidcomposer 5, but this lead to version 6. I had 5.1.2 installer on my external disk, which installed and registered correctly but when I try to check for updates I get an "error connecting to server" message. How do I get the latest version of 5 that I am licensed to use please?
The last v5 installer (v5.5.7) will remain available:
Download RapidComposer v5.5.7 for Windows
Download RapidComposer v5.5.7 for macOS
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Hi BluGenes,BluGenes wrote: Fri Oct 10, 2025 6:58 pm And for me, same issue, when installing the VST3 does not install.. I get an error, if I ignore, I can get at least get the stand alone.
most probably there is a folder called RapidComposerV6.vst3 as a result of a problem in the beta version installer. The installer cannot overwrite the folder with a file. Please delete that folder, and re-install. It will work.
Thanks,
Attila
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
musicdevelopments musicdevelopments https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=223336
- KVRAF
- Topic Starter
- 6010 posts since 9 Jan, 2010
Hi Lairyboy,
I apologize for the slow reply. I am not reading the forum every day, but I reply to support e-mails as quickly as possible, so as thebutler suggested, feel free to send me e-mail directly.
Thanks,
Attila
https://www.musicdevelopments.com
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
Home of RapidComposer, Melodya, MIDI Mutator and Syne
Summer Sale • June 3-15 • 40% off RapidComposer, Melodya, MIDI Mutator, Syne
-
- KVRist
- 87 posts since 3 Jun, 2025
I am on 6.0.0. The forum says that 6.0.1 is available. But RC support page offers me 6.0.2:

That downloads an installer named "RapidComposer-6.0.2.exe". But when I run it, I still end up with my original 6.0.0!!
What is going on???

That downloads an installer named "RapidComposer-6.0.2.exe". But when I run it, I still end up with my original 6.0.0!!
What is going on???
Retired software engineer. Windows 11, Studio One Pro
-
likecarvingacake likecarvingacake https://www.kvraudio.com/forum/memberlist.php?mode=viewprofile&u=770469
- KVRer
- 4 posts since 20 Oct, 2025
6.02. I wanted to try new soundfonts and can't them to be visible or usable. They're recognized, RC builds presets, but there's nowhere to be found. Anyne else run into this?
-
- KVRist
- 87 posts since 3 Jun, 2025
The forum tells me that 6.0.2 is now available, but when I download the update, the file "RapidComposer-6.0.2.exe" installs the original 6.0.0!!Brian Collins wrote: Mon Nov 17, 2025 7:31 am That downloads an installer named "RapidComposer-6.0.2.exe". But when I run it, I still end up with my original 6.0.0!!
Retired software engineer. Windows 11, Studio One Pro
