Ableton Forum

Hi, I'm a long term M4L/Jitter developer. My Patches work very well in Ableton Live 10, but some people told me the my M4L patches crash Live 11 immediately while they work well in Live 10.
Looks like this is an Windows only problem (at least for my patches).
What could cause that problem? Wrong Live installation? Clash with older Live versions?
Admin rights is checked, m4l folder is empty. Doesn't work with older Max version as well (works in Live 10)

Any hints are useful! TYIA

Can you tell more about the patches ?

Just for the record:
The m4l CV tools caused a crash when they were instant loaded via a Ableton Live template, and i've loadet my Max patches afterwards -> Crash.
When loading the CV tools I had some error console entries:
patch:already loadet. (like 20 times)
API not initialized.
(still windows only)