Yes, engine_gettaskinfo was modified in that version. But it was maybe not responsible for the crash, as it could not be reproduced here anyway. Do you have a simple, stripped down example for reproducing the crash?

The problem with crashes in huge games is that it can take a long time of testing and playing around until we can see the problem, if at all. We've meanwhile collected a bunch of large games over time, all with described problems or crashes that we could not reproduce in a reasonable amount of time. The more hidden the problem is in such a project, the higher the chance that it stays unfixed.