"Does all this happen only with multiple AMD GPUs? First post said all worked fine, one at a time."

Yes. I can see how this would be confusing.

When I started this thread, all of the cards were working by themselves. However,the next day when I came back to work on it, I messed around with the bios on card 1, and started getting the message: EthDcrMiner64.exe is not recognized as an internal or external command, operable program or batch file when trying to run the miner in Windows. I switched to card number two (not messing with the bios at all), and it was still giving me the message: EthDcrMiner64.exe is not recognized as an internal or external command, operable program or batch file in a Windows environment.

And the issue of it not working in Hive OS as I wrote in my previous post.

So the main issue now is this message in Windows 10 and it not working in Hive OS either.