First and foremost; I always use the bank's identifyer hardware in combination with their website rather than using their app, so I haven't tested any banking app issues.
Furthermore, I have not experienced any WiFi-issues so far, also not on the previous release.
Finally, I don't use Google Play Services, it goes untested on my devices as well.
To get to the meat and potatoes; 2026050601 is working without issues for me on my P6a, P7, Pixel Tablet and P9Pxl.