Weird bugs in DMD 2.81.0

[solidstate1991]

I'll upload code tomorrow, but here's the premise:

Sometimes elements disappear from associative arrays, causing all 
sorts of errors down the line, mostly access violations.

My engine (PixelPerfectEngine) has a style sheet for its GUI, 
which generates basic values upon construction. This works mostly 
fine with PixelPerfectEditor, however WindowMaker crashes 
instantly when it needs to redraw anything. Both Mago and VS 
debugger were bit broken (first exception came from 
KernelBase.dll, then it only showed the caller of a getter 
function possibly caused the issue), but I managed to get enough 
information. The AA containing color indexes (ushort[string]) 
couldn't be accessed properly and when I tried the safe get 
method on it, a lot of values couldn't be accessed and later on a 
dynamic array had issues with access violation.

I'm thinking on going back to 2.080.0 until this bug gets fixed.