I am able to combine multiple images into a combined PDF file but then when trying to save, I can select the location and hit save, but nothing happens and the save is NOT completed. This seems to happen if the combined file is more than 300 pages, regardless of the images size. If I perform multiple combines and the total pages exceed that threshold, I need to quit the application and restart to be able to save. This only occurs with the 64-bit version (latest version and versions since last June) as I am now working with the 32-bit version and it is working fine and as expected. I have tried this on multiple computers and have experienced the same issues. Running Windows 10 Pro, 22H2 on 64 GB RAM and 16GB RAM. No memory errors are displayed and the application seems to be running normally, only NOT allowing the loaded work to be saved.