I suspect you may have updated your app within the past day or so:
Until this release, that setting used to be at Settings ➜ Advanced Settings ➜ Record to MicroSD Card . Now it’s at Settings ➜ MicroSD Card ➜ Record to MicroSD Card
I’m still not quite sure what you’re doing based on your description. If you could describe exactly what it is that you’re doing and experiencing, then that might be helpful. Pictures or videos (if you feel comfortable sharing those) would be even better, and I feel like I still have a bunch of unanswered questions from my previous post.
Hopefully we can get this sorted with some more information!