I'm glad someone managed to track down this problem, I had the same issue on Mac Os 12.3.2 and it did NOT work to save to desktop or any other drive. The only exception was saving to iCloud which did work reproducibly. The issue appears to surface the second time I (or TurboTax) tries to save to the file. This issue only seems to affect TurboTax - I've never seen it with any other application and I have seen it in multiple years with TurboTax on multiple versions of Mac Os.
