I'm adding this as a repeat or continuation of same subject discussed and closed during Jun-Aug 2025. SCCU transactions still fail to load into Quicken during the One Step Update (OSU) process. However, deposits, etc do show on sccu.com.
If others see this problem, please respond here in Community. Also, like I did, please notify the Q Help Team via Help > Report A Problem and send log files and a sanitized data file. Maybe if Q trouble-shooters see a trend, a resolution will be released soon. For now, it's back to manual work-arounds.