I'm still using a 24.10 PoE enabled variant at present.
Is the 25.12.0 release candidate using nftables ?
There's a lot of bugs at present, no worth running as a daily unless you want to go reporting every issue.
I hope I'm not intruding by adding to this thread. I had a crappy time trying to get my MX64 (A0) to boot using the notes from a Pull request that I found. I managed to get to the point where it's booting from the USB drive and I finally got a UART and can see that it's loading the initial image, but then it sits at the following screen and basically stops. I used the image at Cisco Meraki MX64/MX65 image support - #198 by clayface since I have an A0 board. Previously when I tried this, I got the thing about not having a bootm compatible image, so I hope that was the right thing to grab!
Should I be using a different initial install image? I've got openwrt-bcm53xx-generic-meraki_mx64_a0-initramfs.bin
Verifying Hash Integrity ... crc32+ sha1+ OK
Booting using the fdt blob at 0x90a6500c
Uncompressing Kernel Image ...