It's believed this is caused by Windows "Background Activity Monitor" It's supposed to prioritize network traffic on the computer. Library loads work through the network even if the library is local. (The library window is really just a stripped down Chrome web browser.)

The "BAM" seems to incorrectly force all the library processes into a background thread. If you're brave (or crazy) the relevant registry key is here:

Computer\HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\bam\State\UserSettings\

Cleaning out all references for Poser in that key seems to rectify this condition. And, don't even try it unless you know what a registry key is and why messing with the wrong one will crash your computer.

The problems came back again, but it seems I was able to figure it out 🙁

I found the log file at: c:\ProgramData\Microsoft\Windows\WER\ReportArchive\

There are 21 folders with Poser errors (NonCritical_Poser.exe) and in each folder there is a file (Report.wer) with the following wording:

EventType=FaultTolerantHeap

I tried to look for what this means, some users had the same problems for quite a long time with iClone 6.4 or some other 3d programs, and just renaming the folder helped them. I tried to do the same, for example, the folder was called Poser 13, I renamed it Poser 13 1 and the problems disappeared! At least 2 days without problems.

So if anyone has similar problems, then just try to rename the main folder with the program. Because of this, no other errors occurred, all paths to the libraries remained working!

Thank you for your reply!
Yes, I first completely deleted the program, and then installed it again.

Interestingly, I will try to use the Geek uninstaller utility,
thank you!