ttax 2024 is crashing when trying to open a new file

Hi, Going crazy here on tax day. I completed my much more complex tax filing and need to submit for my son. Every time I try to open a new file, with the expectation that it will load my sons tax data from 2023, ttax2024 crashes. I've tried uninstalling all the VC++ redistributable and runtimes, reinstalled turbotax, etc, several times without luck. I've never had problems like this in the past and this is very disappointing. I need this resolved asap. I am on win10. It worked ok for my tax file, just won't open any new files. thanks

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