EXCEL Export not nothing

Hello,
I have an Excel export with row selection. ONLY ON MY PC everything is working. On ALL PC of my different customers in Germany, the progress bar is not started and no file for view or download is created. I have no idea what the reason is. My customers use different browsers. On my PC firefox,Chrome … is working.

Have you updated your prod environment?

Yes … I updated ALL componets on my server. I don’t understand why it’s working on my browser when I use SC as a normal WEB-customer.