Problem with WEU and rect's

so im makeing my map all hapilly. saving often, keeping a bacup (2 backups actually)
i need to do a boolean comparison:
"doas REIGON convert_rect_to_reig((var)reigons[conversion(mana of (picked unit))]) contain picked unit"
(trust me, its the only way... (without ALLOT of work..))

so it crashes the WE when i click a diferent trigger, because of a problem with THIS line... in any way i use that line it gives me an error.

so i can only guess its WEU. help? please?

That's one of the advanced triggers, which means you would have to activate them to use them (otherwise -> compile errors)

Anyway in this case you have an easier option that doesn't require advanced triggers, namely:

"Does RECT regions[conversion(mana of (picked unit))] contain picked unit"