Adobe Acrobat Reader 2021.007.20091 has issues with FDF files

Running Adobe Reader DC 32-bit on two Windows 8.1 64-bit machines.  After updating to version 2022_001_20085 a couple of days ago, I am having a somewhat similar problem.   ONLY when double-clicking on a .PDX (index) file, a window pops up with "Please wait while Windows configures Adobe Reader DC".  After about 10-30 seconds of this, the Reader comes up and works as expected.  This happens every time, consistently, on both machines, and did not occur with the previous versions 2021.011.20039 or earlier.   No problems opening a regular .PDF file by double-clicking it, or - somewhat surprisingly - if I open the Reader seperately by itself and then specify File --> Open --> choose 'All Files *.* in the Open dialog and then point to a .PDX file, it works great immediately...!  Anybody else see this?  Any ideas?

Hi, Can you provide an update when this will be fixed? We deal with 100's of these files over the course of a day or two and users are not happy having to sit through an install routine before opening every FDF.

I rolled back to an older version of Adobe to avoid the error and disabled the update tasks (or so I thought) but after a couple days Adobe auto updated itself back to the version that isn't handling FDF's. Not so easy to stop your update I guess. Currently I have the update task disabled and triggers deleted and we'll see how long that lasts. Maybe a different process is doing the updating so I hope you get a corrected version out ASAP.