I have hesitated to mention this but on reflection conclude you should know about it.
After pasting a formula into the formula workshop window and closing the workshop window, the formula workshop no longer opened as usual when invoked from the Help menu. Instead the bug window opened with the message
openwizard error: wizard "Formula Workshop" does not exist; and by then a Wizards menu had appeared in the menu bar. This contained only the formula I had pasted into the workshop. Upon selecting that option in the Wizards menu, the formula workshop window opened with the formula in its title bar, but otherwise worked normally.
The Wizards menu did not go away after restarting Panorama. I have not been able to locate the formula string in any Panorama preferences folder or file. My next move would be to download a fresh version of Panorama and reinstall it, unless otherwise advised.