Cannot save a form with signatures after 02-09-2021 Update (v2021.001.20135)

We use reader extended pdfs to fill out forms, save them, and then complete them at a later date. Once the form is complete it is signed and then a copy is saved. Prior to yesterdays update, this worked great. This morning we realized that as soon as we add a signature to the form and press "Save As" we get the following message:

"This document restricts some Adobe Acrobate features to allow for extended features in Adobe Acrobat Reader. To create a copy of the document that is not restricted (and has no extended features in Adobe Acrobat Reader), click Save a Copy."

The options presented are [Save a Copy] or [Cancel]. As soon as you hit [Save a Copy] the window dissappears and nothing happens.

I was able to roll back the update on one of our machines thanks to a recent system restore point, and the problem was not present. However, as soon as the device updated to the current version the issue came back.

I also am unable to install any prior versions becuase the only option listed under Windows 10 / English is the current version at: https://get.adobe.com/reader/otherversions/

We rely heavly on this feature to do business. Please help!!

- Jeff