Strange behaviour of my mouse in Excel

Hi

I'm using Office 365 pro completely updated.

For one day, without having downloaded any ad-Din, I got a strange behaviour of my mouse scrolling.

I have a large Excell file with large number of Worksheet.

The scrolling of my mouse does not work anymore in some Worksheet.

I have proceeded with:

• Tried with another mouse, same issue
• Save and restart Excel, same
• Updated Office 365, same,
• Restart Windows 11, same,
• Reinstalled Office 365, same
• Restart Excel in clean mode, same,
• Restart Win 11 in clean mode, same

If someone could help me, I will be very grateful.

Regards

Bernard