I renewed my extension of stay (ret) inbetween 90 day reporting, therefore the system obviously has my old expiry date stored. It seems online reporting is not possible in these circumstances.
TLDR : Answer Summary
A user is facing issues with online 90-day reporting after renewing their extension of stay, resulting in the old expiry date remaining in the system. Other users suggest using the web portal instead of the app for reporting, sharing experiences that going directly to the immigration office was the most effective solution, where they were able to get their dates updated quickly.