Hey!,
From what i gathered when I was facing that issue was that it was related with STP, what it was I have no idea. However, it seems to work fine with that error message, but of course, it isn't supposed to. I hope some openwrt developer can shed a light on this.
Oh no, please do not start spreading your nonsense all over again which contributes zero to the subject.
Turning STP off is a workaround but a not a solution to an apparent bug.
And it is completely unrelated to Wlan, i.e. whether a Wlan iface gets enslaved into the bridge or not.
Thank you for answering, it help me read the code and slide bits you posted.
And you are the first person that said wlan uses STP; but ok.
Again thanks, and I'd appreciate it if you stop the "spreading nonsense" and not a workaround mess. Nobody suggested as much. Kinda tiring getting your disrespect. I'm following because I see this problem too. Please make the threads helpful for everyone, not just yourself. Thanks.
EDIT: With that said, it would also help if you gave the exact OpenWrt version, as I built estimating from your software list - to flash a friend's to test. It's kinda hard guessing what you're running.