Quicken R57.26 Complete Failure

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The latest release has completely destroyed my file. My balances randomly changed from zero to 65K. I have tried to restore from previous backup (spent three hours trying different combinations) - Complete Failure. Couldn't create a new file. [Removed - Speculation/Disruptive], you cannot create a new file on an existing window that had a previous install. So I create a HyperV VM of windows 11, installed Quicken, created a new file. Added one account. And guess what! when you sign out and sigh in, all accounts gone. I am done with Quicken, too many issues. [Removed - Speculations/Disruptive]