Unable to Save Edited Comments in Adobe Acrobat - "Dictionary Keys Must Be Direct Name Objects"

I'm facing an issue with saving edits to comments in Adobe Acrobat. Here's the situation:

• I created a document using LaTeX (compiler unknown, possibly Overleaf or MikTeX locally).
• I potentially used GhostScript to reduce the file size.
• I used Adobe Acrobat to leave comments during a meeting and saved the PDF successfully.
• Now, I'm trying to modify some of the comments by marking them as complete, but I can't save the changes.

When attempting to save, I receive the following error message:

"The document could not be saved. There was a problem reading this document (135)."

Pressing  Ctrl + OK reveals a further message:

"Dictionary keys must be direct name objects."

Does anyone have any suggestions on resolving this issue and saving the edited comments in Adobe Acrobat? I would greatly appreciate any insights into the "Dictionary keys must be direct name objects" error in this context.

Additional Information:

• I'm unsure about the specific LaTeX compiler used (potentially Overleaf or MikTeX).
• GhostScript might have been involved in reducing the file size, but I'm not sure.

Thank you in advance for your assistance!