I'm running ATM3:R 2 and the Bug still exists. Also AE2 of course is the latest version rv6 stable 7

    AE2 is V6 stable 7 update your pack version

Originally posted by @Ki-Tan2934 in #330 (comment)

never mind i didnt read the linked issue on the ae2 side of the problem till the end.
Now i know that i'm stupid.

It appers to be that the max. working size ist 256k because of an limitation from the code of ae2