I upgraded from AmpliTube 5.5.2 to 5.5.3 on Windows 10. After this, the standalone AT is working fine, but when I want to open AT's User Interface as plugin in Reaper DAW, then Reaper crashes (for both old and new Reaper projects). However, sound processing in old Reaper projects still works. So for me it looks like the upgrade broke something in the UI of AT5's VST plugin.
Are there other Reaper users having the same problem?
I am using version 6.71 of Reaper on Windows 10, which is the latest version of Reaper.
I guess I could downgrade to AT 5.5.2 by manually running the installer contained in file "AmpliTube_5_5_2.zip" (which I found in the download folder of the "IK Multimedia Product Manager". Or maybe this bug is fixed in AT 5.5.4