HELP! Some brushes not working properly, photoshop 2025

[theresas73580041]

I've been downloading and using third-party brushes from different sources for a few years. This past week, I noticed SOME brushes - particularly but not exclusively halftone brushes - don't work as they are supposed to. I learned how I can tell ahead of time if a brush will not work - the pictured brush tip shape does not match the illustrated brush stroke in the brushes panel. See attached photos for reference. 

I tried uninstalling the affected brushes, shutting down photoshop, and reinstalling the brushes, to no avail. Please help? I'm afraid of resetting ALL brushes as I've made some internal custom brushes. 

[theresas73580041]

In addition to uninstalling brushes, restarting the program and reinstalling the brushes (which did not work), I tried to install an earlier version of PS to see if it was the update which caused the problems. That did not work either

[theresas73580041]

Okay. I was on my own here but I figured it out with the help of a video from one of the brush suppliers. Here is a link to their page about troubleshooting brushes: https://support.truegrittexturesupply.com/hc/en-us/articles/360015131474-My-texture-brushes-looks-no...

I run windows. I had to go into my app data and delete the prefs.psp file, and restarted photoshop. The app looks different now and I will take some time to customize it again but all the brushes that weren't working are good now.