Reaper into RightMark analyzer - waveform not recorded properly?

[lfm]

Hi

Render testpatterns generated from RMAA - and cannot open as testpattern output from Reaper.

RMAA just say - waveform not recorded properly.

Do the same in old Sonar 8.5 with no problem and read and analyzes too.
And opening generated RMAA testpattern files for analysis also work fine.

I can open Reaper output directly for Spectrum analyzer in RMAA - not saying anything.

Have a vague memory reading about some software feel something is missing in audio output from Reaper?

Any good tools to read wav file - and get every possible property to view and compare?

Thinking if anything i wav header that Reaper don't bother with.

Thanks.