After the last update to the 2022.011.20142 version, which has the "Microsoft AIP" plugin bundled in the installation, Adobe reader in the 32 bit version won't open AIP protected PDF files.
The program will start a background proccess but Adobe won't open, only after ending the task you'll be able to open adobe reader at all.
The problem is solved when reinstalling the 64 bit version, but this is a headache to any organization that has multiple devices with the 32 bit version.