Yes this is some generic issue. We're still investigating.
Since this is an issue with the build framework please refer to the proper bug report here: https://github.com/armbian/build/issues/7054
Would make more sense if the wiringop maintainers change to /etc/armbian-release since orangepi images are based on Armbian. They forked the framework years ago, did "sed s/armbian/orangepi/g" across the whole code and added hacks to make their boards somehow work.
Pre-made images for download are compressed while building an image by yourself is not by default.
use xz to compress it and you should get to your desired ~250M
I don't know. Not my department. Just passing information.
If you want to dive into how things work (and can do improvements) everything is there: https://github.com/armbian
Providing logs with
armbianmonitor -u
helps with troubleshooting and significantly raises chances that issue gets addressed.
Doesn't look like a kernel that came from Armbian.
Not sure if they can be brought back to sync since I see a similar behavior on my board. However you can try to disable/re-enable the heartbeat or disable for certain colors if possible. Refer to https://docs.armbian.com/User-Guide_FAQ/#can-this-behaviour-adjusteddisabled
hdmi worked on edge until something like rc4 or so an then broke. We'll see if 6.11-rc fixes this again.
End users are still recommended to use vendor 6.1 branch.