calc crash when try to find in specific sheet

Hi all,
work on (annoying) win10 with (mostly working well) libre office (x64).

in a specific calc spreadsheet calc crashes when try ‘find’.
Tried to set back user profil, without success.
Then i found out that randomly what helps (as work around): select whole spreadsheet, right click, ‘show all columns’.
(and i think there were no hidden columns)

I think that could be a bug …?
maybe somebody can help this expierience.

kind rgards

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