Doc, something strange happened after updating to 1.7.1. One of rigs (8xVega56) disappeared from nanopool 11 hours back like it's off, but it mines, consumes power and shows normal hashrate like it was when compiling kernels on fresh drivers. Reboot helped, rig is back online, but I doubt it couldn't occur again.
Ive had the same thing happen on a vega rig with supportXMR, though it has to be on their side as my payout stayed the same... did you payout change?