Cannot save files

Hello,

I’m experiencing an issue with Adobe Acrobat when trying to merge and save PDF files — even when the files are relatively small (under 80 pages and below 2GB in size). After selecting Save As and choosing the destination folder, the file doesn't appear to save correctly. The filename at the top of Acrobat doesn’t update, and I can’t find the file in the selected directory.

I’ve already tested disabling the “Show online storage when saving files” setting, but the issue persists.

I’m unsure how to proceed from here, so any guidance or suggestions would be greatly appreciated.