I also tried re-installing the app as recommended by TurboTaxAniqua and now TT crashes immediately, warning "TurboTax has encountered a corrupt or incompatible resource file. You must reinstall TurboTax"
My bad...you must make sure to UNINSTALL first and then INSTALL. This sequence worked for me and preserved my tt24 files in C:\Users\xxxx\OneDrive\Documents\TurboTax\2024. I had however made a copy just in case.
At least, at this point, TT starts and I can load my tt24 files to continue working on them.
