Since this morning it looks like this. Until the network drive X is connected (HiDrive Cloud) all drive icons look normal. Then they all get the red overlay icon, internal drives, external drives, whatever. I deleted icon cache and removed the HiDrive overlay icons as suggested here: Red icons appears in all drives Windows 7
Anything else I could try? The network drive has been in use for a while and the app connecting it as such has not been updated. All drives including the network drive function perfectly.