Effects not working
When editing a photo/image filters are working, filter level too, but effects do nothing, whether it be in preview or by pressing done to finish image edit.
To be more precise only "adjustment" (the rotation effect) and "thumbnailing" effects are working, all color and brightness and other effects do nothing.
MX4 RC-OTA-12, but was the same on OTA-11, and even with "old" app (before fork) on canonical OTA-15.