Router hangs on reboot after adding container on USB (S53UG+M-5HaxD2HaxD, ROS 7.23beta4)

Hello,

I’m experiencing a strange issue on an S53UG+M-5HaxD2HaxD running RouterOS 7.23beta4.

After installing a Pi-hole container on an external USB drive, the router gets stuck whenever I try to reboot it (either via System → Reboot or during an upgrade). All LEDs turn off, there is no network connectivity, and only the USB drive LED keeps blinking continuously.

If I disconnect the power and plug it back in, the router boots normally and works fine. The Pi-hole container also works correctly after boot.

This started after setting up the container on the USB drive, so I’m wondering if it’s a configuration issue or possibly a bug in this RouterOS version.

Has anyone experienced something similar?

Thanks in advance for any suggestions.
Tim