Maybe you just rebooted the device, point #23:
GP & CSA (Good Practice and Common Sense Advice) for Mikrotik devices
or - sometimes it happens - it is just voodoo.
Your wifi settings are still (IMHO) a mess, they should be reviewed and re-organized along the DRY principle:
https://en.wikipedia.org/wiki/Don't_repeat_yourself
You should use one (or two in your case) configuration and security settings and two channels and leave the radios in /interface wifi set with just a configuration, a security and a channel.
Check the example given here:
It is more readable compared to have settings spread here and there, in any case use "print detail" and "print detail config" to see the whole settings applied to each interface.