GPD KVM module not working

Hello,

I have been enjoying my Pocket 4 and have a KVM module which I use lots. Was working fine and then all-of-sudden the video input in the KVM module stopped working while I was connected to a PC. Have tried re-seating the module, restarts etc. . USB-C for keyboard/ mouse is still working.

Any ideas?

Contacted kendyz but typical poor customer service from GPD; no reply.

Thanks!