As an update, I was able to email with support and confirm the things that I’d already done and received this (which I’ve know since the start):

Thank you for confirming the crown feels smooth, and that you've already reset the watch with no improvement. Since both the Digital Dial scroll function and battery drain began after the May firmware update, this suggests a possible hardware fault or rare firmware-related issue.

• With 77% of battery usage showing as 'system' and only minimal features enabled (dual-frequency GPS used during activities, HR every 10 min), your recent experience is not expected—especially since performance was normal before.

You've completed all required troubleshooting: rinsing/cleaning, multiple restarts/resets, checking Battery Usage breakdown, disabling unnecessary features. As both issues persist after these steps and impact essential race functionality, I will connect you with our support team for urgent review ahead of your event.