LattePanda 3 Delta Auto Power Problem

Hello
I have a LattePanda 3 Delta with the SW and AUTO pins shorted to enable autostart. Autostart on power-up works perfectly in most cases. However, I’ve encountered one situation where it doesn’t work:

If I disable power shortly after the blue and red LEDs turn on, and then immediately power the device back on, autostart does not work. In this case, I have to manually press the power button or reset the BIOS by removing the backup battery to turn the device on.

This issue doesn’t occur when the battery is removed, but in that case, the BIOS takes a long time to start.

I tested this behavior with both a USB-C power supply and an external 12VDC supply — the result is the same.

The PowerLoss function is enabled in the BIOS, and I’m using the latest BIOS version.

Has anyone experienced a similar issue? The device will be used by customers, so this situation could be problematic.