changes to document not saving

[Neil5C35]

Hi, I'm running the accessibility checker in Adobe Acrobat DC Pro.

Tools > Action Wizard > Make Accessible. Then following the prompts.

It tells me that table headers have failed.

So I right click on the first element and choose "show in tags panel" and fix the errors.

Then I go back to the accessibility checker and ask it to check again. The error is removed.

I save the file and reopen it and run the accessibility checker again.

The same error returns.

Please help.

[Neil5C35]

Should have mention i'm running version 2019.010.20099. The file is stored locally, but i'm not the author, and I dont have access to the source document. Which I beleive would have originally been an MS Word doc.