Undeclared identifier warnings appearing at random

[SpecialFX]

I've started getting this warning message when attempting to compile my EAs, it relates to the variables within certain custom indicators - but seems to be random as I've used them plenty of times before without issues.

I've tried re-uploading the indicators as well as editing the identifiers, but it doesnt solve the problem. Any ideas?

[l'andorrà]

@specialfx This is something for miro and/or roar, I'm afraid. This is for real coders.