Well, the stack overflows through the years seem to resolve similar issues by pinning the JRE version, so I assumed it had something to do with it. Sounds like

Well, the stack overflows through the years seem to resolve similar issues by pinning the JRE version, so I assumed it had something to do with it. Sounds like that might have been a bad assumption. Either way, I never tracked it down. Plenty of options for spreadsheets these days.