I have 3 MINIs and my newest is a 2015 R60 with just under 60K miles. They're all well cared for in the last 3K miles all new filters, new iridium plugs, oil change, etc. I recently had the HPFP changed on our R57 and now I am experience a similar behaviour on the R60. It starts out good but after a bit the idle is very unstable and yesterday it started showing the yellow CEL engine warning although I felt no stumbling.

Carly shows the following DTC codes oldest first:
2BC0 MIXTURE TOO LEAN (NOT SERIOUS)
2775 AIR MASS TOO LOW (NOT SERIOUS)
2EEF CYL 4 MISFIRE
2EEB CYL 3 MISFIRE
2EE5 CYL 1 MISFIRE
2F00 CYL 2 MISFIRE RECOGNISED
2F02 CYL 4 MISFIRE RECOGNISED
2F01 CYL 3 MISFIRE RECOGNISED
2EFF CYL 1 MISFIRE RECOGNISED
2EFE MISFIRING SEVERAL CYLS RECOGNISED

I am trapping no issues with the HPFP or injectors and it seems very doubtful that every coil pack would tank at the exact same time. I'm wondering if I got a bad tank of gas perhaps with moisture contamination?

Any recommendations to troubleshoot this more accurately?

Thanks in advance.