What could be the reasons for my husband's 90-day report rejection and how should we handle the arrival date on the TM47 application?

Question regarding 90-day report. My husband is on a Non-B visa extension and he's done his first report in person at Chaeng Wattana back on March 11. We did an online report last week on June 6 (2 days in advance of the June 8th due date) and saw that it was rejected just this morning. TM30 is up to date and there's not really a reason stated on why the report was rejected. The only reason we could think of is maybe the "Arrival Date Thailand" on the TM47 application. He entered on a visa-exempt tourist stamp August 8, 2023, which was then extended to October 6, 2023. Afterwards, his company applied for Non-B inside Bangkok which was granted til December 9, 2023, which they then extended until December 3, 2024. So ever since arriving back to Thailand on August 8 last year, he hasn't been out of the country. Could this arrival date be the reason why the 90-day report is being rejected? Should we be inputting the last date of when he did his 90-day report instead in the "Arrival Date Thailand" portion? Thanks.