There are no issues with Acrobat when it is properly patched.

If the app crashes immediately upon opening a PDF, first ensure that the patching process was completed successfully. This is a common step that can be overlooked.

If Acrobat continues to crash even after confirming it's patched, the issue is more likely to be in-app or system-related, rather than a GenP issue.

This type of crash is often caused by corrupted app files, conflicting system processes, or outdated/corrupted user preferences.

We are not an alternative form of Adobe Support and only assist with GenP-related matters. For anything outside of GenP, post on the Acrobat Subreddit or search the Adobe Community for similar discussions.

To resolve persistent problems, it's recommended to use the Acrobat Cleaner Tool to fully remove the app. After cleaning, restart your system and reinstall Acrobat via the CC app for a clean setup, repatch with GenP once fully installed again.

Regarding blocking, it's not necessary to use both a modified hosts file and firewall rules, using one method is usually sufficient.

The hosts file is generally preferred, as it allows continued internet access for other features. However, you may need to manually find additional domains if the latest list doesn't fully cover you.

Firewall rules are more restrictive and should be considered a last resort. When properly configured, they don’t require any additional blocking measures.