I often have several spreadsheets loaded - the list is visible under WINDOW, & I can switch between them instantly.
Only one instance of LO is active. COPY & PASTE work fine in some sheets, in other sheets COPY seems to work [cell boundaries turn to dotted or dashed lines], but PASTE is greyed out , PASTE ONLY when selected says “no selection possible” & PASTE SPECIAL is missing!
Seems as tho some option is set-up differently between the sheets that DO & the ones that DON’T - work.
What could it be??? I can’t find any setting or option that seems relevant.
Up-dating LO recently seemed to fix this problem for a day or two - but then it returned!
Currently using V188.8.131.52.
HA! closing the non-working files, then reloading them seems to fix PASTE. Still don’t know how/why PASTE greys out!!