No idea, really. The error seems totally unrelated, so your expression may be the trigger, but not the actual cause. Beyond that your expression is of course somewhat crooked and may cause issues with the internal evaluation that may also cause crashes.
Did you ever solve your issue? Did Mylenium's response help?
Seems like I am the only one in the whole world facing this problem. I couldn't get it fixed.
<123145394380800> <D_PS3p_DetectVideoPSD> <1> enter psl thread func
was the crash after I scrub through the timeline. And fails my render attempts each time.
Hope to hear back really really fast.
Please provide more information like the original poster in this thread did.