I am suddenly finding that I cannot Copy/Paste between my Primary Windows 10 machine and one of my two Secondary machines. I am able to Drag/Drop files ok and the mouse works normally. Everything works normally between my Primary and my other Windows 10 Secondary.
My Primary PC is running Windows 10 1803 build 17134.376 and the Secondary PC having this issue is running Windows 10 Insider Preview Build 1809 build 18267.1001. Up to now I have had no issues with any MS updates to the Insider Preview builds when copying/pasting between PCs.
I have tried turning off Windows Defender Firewall on the secondary but this makes no difference. To repeat, the mouse control and Drag/Drop between the two PCs is fine. Only Copy/Paste won't work.
Can anyone please advise on troubleshooting?