Numbers crashing

If only one document is crashing then perhaps you might want to inspect it to see what makes it different from your other documents that don't crash Numbers.

Or it might have somehow become corrupted, in which case you could try starting a new document and copy-pasting content from it into the new document.

SG

Tough to say, as you give no details...

Have you tried these?

-- seeing if only one document crashes Numbers but there are no crashes with other documents

-- making sure macOS is up to date

-- restarting your Mac

-- uninstalling (via Launchpad) and re-downloading Numbers from the Mac App Store

SG

Happening here too. It’s a large shared document, and seems stable only if one enters data unreasonably slowly. Not sure of all situations where crash does/does not happen BUT IT HAS BEEN SINCE THE LAST REVISION OF HOW NUMBERS AUTODISPLAYS PREVIOUSLY FILLED-IN OPTIONS FOR CELLS. I’ve noticed that.

Also should add: happens on iPad. Not yet on laptop.