Hello,
I wanted to reply and say that I've been having the same issues recently. We have a mix of Windows 7 and Windows 10 PCs (the Win10 ones are a mix of 1607, 1703, and 1803). Is it possible this has something to do with the recent July updates? As far as I know none of my users were experiencing this issue more than about two weeks ago and that's about when the update came out.