Blank map-window after using mouse-wheel

Hi Anton,
First, let me say that I admire your consistently good work on Traccar. I have been using the system for several years and am very satisfied with it. Yesterday I updated to version 4.9. I noticed that the map window turns white as soon as I try to scroll with the mouse wheel. You have to call up the page again so that the map is visible again.

What browser? Please provide a screen recording showing the problem.

Hi Anton,
Browser is firefox. O.pen Traccar, place the cursor on the map window and scroll mousewheel --> Blank map window.
How can I upload picture /video ?

Upload it on any public service (e.g. YoutTube) and share a link here.

https://youtu.be/n8Y1Qp31IzI

This video is private.

oh sorry I'm inexperienced with it

now public (I hope)

And it didn't happen with previous release? It might be an OpenLayers bug.

No, with release 4.8 was no problem like this.

is teamviewer an option for you ?

same effect after switching from OpenStreetmap to Carto Basemaps

Hi Anton,

I am sorry, the problem is not caused by Traccar!
Testing on another PC with a standard mouse does not show this error.
Obviously a conflict with the mouse driver (Logitsch setpoint).

Thanks for the update.