Why can i not use ctrl c and ctrl v in remote desktop anymore?

I'm using remote desktop and before i always copied my files trough remote desktop. But since yesterday this was not working anymore. Does somebody know how to fix this?

Maybe its because yesterday i changed my 'HDD' to 'SSD'. Or was there a remote desktop update? Maybe i need to change something in the settings.

I tried already some settings but i found nothing.

I'm on windows 10