One thing you may want to try. Edit the Poser.ini, about 80 lines down there is a TEMP_PATH line. Set that to a non boot ssd drive in a directory just for Poser temp files. Create a directory on that drive to match. Start Poser and Increase the texture cache size (in preferences on the render tab) to about 50000 (50 gig). Set render threads to two less threads than your system has (30 with a 1950x, and you may have to go way lower if it is a parallelization issue in the CPU), Then restart Poser again, and see if it still does it. My system is running Windows 11, and that is how I have it set up. The only hangs I get is when cancelling renders, which is normal since I GPU render 99% of the time....

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