Kano does a luck report regularly to find block withholders - they show up as making no blocks at all over an extended period when they should have made some (it's random so you can't detect it until they've been hashing many blocks' worth). He reports it here regularly though I'm not sure everyone understands the implications of the report. The S9 batch 1 across all miners as you see above by now should have found 110 blocks based on the total hashes they've submitted to this pool but have so far only found 82. This is by far worse than any other device that we can positively identify. We can only speculate why this is, but the batch 1 firmware also had some other stratum extension that was never working on any pools so it was removed in later firmware. It is possible there is some kind of bug in the original firmware.

This is why he was urging everyone with S9s that was still on v1 firmware to upgrade. I'm aware that you lose some kind of frequency control or fan control or something by upgrading but that's nowhere near as bad as (potentially) losing blocks.

As for whether other pools are affected, we can only report accurately what happens here, and only speculate what is happening on other pools based on people grumbling about bad luck on almost every other pool thread. It certainly looks like global luck has been down across all pools since the S9 came out, but I can't say anything for certain.