Misaligned cursor in Spreadsheet editor

Hi - Happy New Year :dizzy:

I have just downloaded a Google Sheets-file in xlsx-format and uploaded it to Murena cloud. That works fine - except for one annoying thing: The cursor doesn’t select the cell it hovers over - instead it selects a cell that is displaced several cells to the side and several cells lower.

First, I thought this was an artifact of the migration. It turns out that this is not the case. Even if I create a new empty spreadsheet directly in Murena’s version of OnlyOffice, the problem is the same.

If I point to the upper left corner of cell A1 I can select that cell. But the further right I go in the spreadsheet, the more displaced the selected cell becomes. If I click on P1 it is R2 that gets selected. Same if I go down: If I click on cell A30 it is cell A33 that becomes selected.

This is annoying to the point where it doesn’t really makes sense to try to edit a spreadsheet. Trying to select a value in a cell with a drop-down list becomes almost impossible.

Am I the only one with this problem?

I’m accessing Murena cloud via Google Chrome on Windows 11 Pro running on an MS Surface Pro 6.

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Additional information:
Now it turns out that this problem is not only restricted to the spreadsheet editor it is also present in the document editor. Clicking somewhere in the document places the text cursor in another line.
I’m pretty sure it’s a new problem because previously I have been using the document editor without any problems.
To figure out whether it was related to my private laptop only, I tried to log in and open the files on my work laptop. Here the problem was gone in the document editor, but it was still present to some extent in the spreadsheet editor:
When you click on the lower half of a cell, it’s the cell below that becomes selected.

Any ideas?

Further information:

It turns out that it’s related to Google Chrome ???

In MS Edge it works fine.