Smart filter freezes with Silver Efex Pro 2

I am using Silver Efex Pro 2 with PS 2021 on a Mac with Big Sur OS. I have created many files using Silver Efex Pro2 as a smart filter. When I try to relaunch Silver Efex Pro 2 from the smart filter, the Silver Efex Pro 2 screen freezes at the progress bar. I have to force quit PS. Essentially I no longer have access to the edits I made to Silver Efex Pro 2 on older files.