Issues with Syntax Files on v28 (Mac)

After updating to v28 (as required to by our university's licensing), I am having issues with syntax files on my Mac. If I try to open a syntax file without SPSS already being open, it starts up, tries to open the file, and then the whole program shuts down. If I have an open dataset and try to open a new syntax file or use the "paste" button, it just won't open a syntax window. I also can't quit the program- I have to force quit it every time. This is a problem since I almost exclusively use syntax and need to access syntaxes from current and previous projects. I was running Mojave OS, just upgraded to Big Sur and experiencing the exact same issues. Has anyone had this problem and found any sort of solution? Thanks in advance!