Actually, I’ll consider this a reminder for a known issue. The issue here is you encountered a guide star lost event whilst awaiting the flip and it terminated the sequence. Waiting for flip does not currently alter the state of the telescope so it’s typically not a problem that most users see, but if it’s close enough to mount safety limits it might happen often enough for current users. The fix here (which is complete and will be in the next 4.5 beta) is to ignore these events when awaiting flip (that is the bug here).
Side note:
SGPro emitted the reason it terminated the flip wait in the notification center (just a helpful tool for troubleshooting).