Please don't ask why or how, because I can't explain it, but after my "90 Days Online Report" was rejected three months ago with the inexplicable reason ("...Incorrect entry date upon entry into the kingdom/ Incorrect visa expiration date"), and I had to report it manually on site, it worked again yesterday.
I had already prepared myself to have to drive to Jomtien again, because the usual email reminding me of the upcoming report didn't arrive this time. Nevertheless, I thought to myself: just give it a try. So I logged in 15 days before the appointment and submitted my report. The confirmation of receipt came as usual shortly afterwards and one day later the approved confirmation with the receipt for the passport actually came. 😊🙏