I recently upgraded some of my routers to RouterOS 7.1 stable. Most of the things work fine out of the box. I hit a problem when I tried to use /export command on hAP mini (RB931-2nD). I tried it on two different devices with completely different configurations. Every time the /export freezes after approximately 23 lines. My guess is that it could be caused by the limited hardware resources of this router.
Does the /export command work for you on this router or do you have the same problem?