If I run Website entry, the webpage is grey

Hi

I use RDM 2026.1.16 on three computers and I sync my entries via Personal Hub. All works fine except Website entries. They work well on one of my Windows PC, but they did not work on the two of them. If I open website entry, I can see only grey page. Would you know how to fix it? I played with settings on the Autofil and HTML controls, but it did not help.

Thanks