My flow terminates a process (by name), starts a fresh copy of that process, clicks on the UI element associated with that process's window, and then tries to select a menu option in window ("MenuItem: File -> Open...Ctrl+O").
Until yesterday (June 19, 2022), this has been working reliably. I could run the flow as many times as I wanted. But beginning today, I can only run the flow once successfully; after that, the attempt to select the Open option fails with error, "Failed to select option (option wasn't found)". I have tried closing the process and rerunning the flow; closing Power Automate, reopening and rerunning the flow; and a combination of both. It continues to fail. The only remedy I have found is a total reboot of the machine. After this, it will work one more time, then continue failing.
I have not upgraded the process that PA is trying to manipulate. So I don't think this is due to the menu item of the process.
Can you suggest troubleshooting steps, please?