I see. I did as you instructed, but I'm still getting the same error.
2023-09-15 23:16:02.749005+0600 controlShift[81746:874607] [] -[NEFilterManager saveToPreferencesWithCompletionHandler:]_block_invoke_3: failed to save the new configuration: (null)
I have a suspicion that this might have to do with my computer specifically since I get the same error when I try to build and run this repo (https://github.com/anismansuri63/MacFilter) that I found online through this post (https://developer.apple.com/forums/thread/703655) while trying to find a solution to my problem. I could be wrong, but right now, I am unable to test this on a different computer.
If anyone has some insights into this, that'd be helpful. Thanks!