This issue is occurring due to me having an internal check to only drop items while stunned OR the inventory is full, it will automatically break out once you have 3 or more free inventory slots. This is the issue that is occurring because you have 99 Thieving, and therefore never fail the pickpocket. I apologize for the delays, thank you for the screenshots it helped me figure out the issue. I have added a toggle to disable this setting, however it will be toggled on by default because that is what is preferred by most users.
Make sure to toggle off that setting where the mouse is hovered, and it will empty the entire inventory that is below a certain threshold. The fix is live in v12, relaunch the script and you should see it now. Hopefully this fixes your issue, please be sure to let me know if it doesn't!