A few questions.
1A. For TDR Comp are you 100% sure you're not loading the VST2 version and that's why things aren't working? I've done that. "Plugin isn't working - whoops, it's the wrong plugin format."
1B. If you are loading the VST3 of the comp and it's still not working, did you happen to rename the plugin in Reaper? I renamed my TDR plugins in Reaper, but this will of course break the fx.zon files, which need a 100% on the plugin name.
Now...Rotary push...no clue.
Now, while I don't know why it's not working, this is the process I'd follow to troubleshoot:
1. backup your fx.zon file (call it reacomp.bak or something)
2. Create a new ReaComp.zon file
3. Assign a single Toggle+RotaryPush1 (no Shift yet) to a single toggle ReaComp parameter only (save this and restart Reaper of course)
4. Test that one paramater. Does it work? If yes, then...
5. Introduce Shift. Does Shift+Toggle+RotaryPush1 work? Nothing else in the zone, yet, still doing 1 parameter at a time. If yes, that means it
can work, then it's a question of "why isn't this working in my original .zon."
If it's not working, then the questions become:
1. Is the syntax correct? If yes, then...
2. Is there a conflict with something else in my fx.zon? Maybe one of the NoActions is preventing messages from getting through.
3. Maybe there's a bug that got introduced? Especially if it worked in a prior build.