The bug appeared at the version 5839, this is probably the cause:
Quote
r5826 | terminx | 2016-08-26 18:40:46 -0700 (Fri, 26 Aug 2016) | 1 line
The great cleanup continues. This one also adds a new feature, SFLAG_WAKEUPBADGUYS. When awoken (changed to an active actor), any sprite with this flag set will wake up any enemy it has line of sight with.
The great cleanup continues. This one also adds a new feature, SFLAG_WAKEUPBADGUYS. When awoken (changed to an active actor), any sprite with this flag set will wake up any enemy it has line of sight with.
Versions below 5839 don't have the problem.
EDIT: I also mention that, some bugs I found some time ago are still here:
https://forums.duke4...u-related-bugs/