Hi TVA, First and foremost, please accept our deepest apologies for the long delay in responding to your ticket. We really appreciate your keen observation and for taking the time to share the pattern you discovered regarding saving multiple versions under different file names. That is a fantastic clue and very helpful for our investigation! Our team has been trying to reproduce this freezing behavior based on your description, but we haven't been able to trigger the exact same freeze on our end using the most recent updates. To help us get to the bottom of this, could you please let us know: 1. Version Check: Are you still experiencing this freeze with the latest versions of Character Creator and the Auto Setup plugin? 2. Workflow Video/Screenshots: If the issue still occurs, could you possibly provide a screen recording or some screenshots showing your exact step-by-step workflow? (For example, demonstrating how you save/rename the project files in CC, your export settings, and the exact moment the plugin freezes in 3ds Max). Seeing the exact context of your operations would be incredibly helpful for our developers to pinpoint the missing link. You can upload the media or files to a cloud drive (like Google Drive or Dropbox) and share the link with us here. Thank you so much for your patience, your detective work, and your continued support! Best regards, Kayla Reallusion Support Team