Create Classic 11.0 stable - causing major problems for me.

[Alex Tweedly]

I can't be 100% sure that it was installing CC 11.0 that caused the 
problem - but I am 99.9% sure !!

Things that worked OK yesterday no longer do - and the only obvious 
change was installing CC 11.0.0.

Since installing it, the IDE does not show the PolyList, PolyGrid or 
DatePicker widgets in the IDE's tools panel. (May be others, those are 
just the ones I noticed / tried).

More importantly, existing stacks which contain PolyGrids, no longer 
work in the IDE. The PolyGrid is invisible and does nothing.

Even worse, this problem, whatever it is, also affects other versions 
(presumably because they share the same "My Livecode" and "My 
Livecode/Extensions", etc.) including back to (at least) 10.0.4

I've tried resetting all preferences to default.

Should I delete the prefs file (and where is it) ?

Should I try deleting LC completely and re-installing ?

Or any other suggestions ?

Alex.

btw - all on Macbook air (M2) running 13.4.

P.S. fortunately I have an old Macbook that I haven't used for years, 
with 10.0.0 rc4, which still works OK, otherwise I'd be completely stuck.