BUG - remove hidden information - Acrobat remove some visible/live text (in all Acrobat versions)!!!

hello
I need to check many pdf for hidden/clipped text and remove them. Acrobat can find this BUT have bug.
Acrobat mark some live visible text and this is problem if you click "remove" button.
Here is evidence (6):

It was strange in my copy of DC, but I selected the Redact tool and then remove hidden information. I highlighted the hidden info in both files, but then backed out, not doing the remove. When I tried again, the remove hidden tool was blocked. When I actually did the removal, those items were missing as you mentioned. I am not sure why they were listed as hidden since they were indeed visible. I am not really helping answer the problem, but confirming your results.
Also, if you select remove hidden information when closing the document, you lose these fonts characters just as when using the Redact tool. I would agree that this is indeed an issue for a bug report. An earlier post provided the bug report link and I would suggest using it.

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