Hello, faithful!
I've finally received by M1 laptop!
Here is the first ever arm/intel RPP build, seems to be working.
It looks like Apple abandoned ColorSync completely - bugs are not fixed for few years already and in addition on Apple Silicon it is even more buggy.
Luckily legacy API is still working on both architectures, so we are ok for now.
This version (1924, universal) is identical to 1922(intel) - the only difference is that it's native to ARM/M1 and Intel machines now and it works a lot faster than intel version under Rosetta.
https://www.raw-photo-processor.com/RPP/RPP64_1924Beta.zip
Just in case, previous intel only version:
Please try it and let me know if something.
Good luck!
Andrey