Weird bugs in DMD 2.81.0

[solidstate1991]

Well, it seems I fixed the AA issue by removing a totally 
unrelated thing (an undoable event chain system, that got 
"deprecated"), but now I got another weird issue.

Sometimes setting a dynamic array's length causes an access 
violation. Still only on WindowMaker, and nothing in 
PixelPerfectEditor.

Does somebody have a foolproof method for designing window 
layouts without an editor? I starting to give up on this piece of 
crap software, however before that it took me a whole day to 
figure out where the elements should fall, then another day to 
debug issues with the layout. My current solution at this point 
is to type in stuff instead of relying on generated code.