Partly posted on another forum assumption was update OS.
Here Logic Pro projects on iMac originally from iOS GarageBand cause Alchemy to be bugged silent and sometimes sound a feedback loop, opening the alchemy tracks causes Logic to crash.
New instances of Alchemy function as normal, it seems something to do with the instances of alchemy from GarageBand iOS.
A quick helpful workaround is to duplicate the problematic tracks and drag the midi over to the duped tracks.
However not ideal if dealing with multiple tracks and projects.
I assume the proper fix will be to update to the next OS Sequoia.
It was fine on 2015 iMAC running Monetary, however I changed my setup to a 2019 iMAC running Sonoma, also these projects open fine on MacBook running Ventura.
Thanks in advance
De
