This is a bug in certain versions of Sharpen AI for Windows in which Sharpen AI inadvertently installs a Beta plugin that does not function. To remove the Filter from Photoshop, follow these instructions:
Navigate to the Sharpen AI plugin directory (Default C:\Program Files\Topaz Labs LLC\Topaz Sharpen AI\PS_Plugins_x64)
Delete the file named tltopazsharpenaibetaps_x64.8bf or tltopazsharpenaibetaps_x64 as it will crash Photoshop if you aren't using the beta version of the program.
- Restart Photoshop and the errant Beta filter should be removed.