Hi, thanks for helping out!
When I triggered the hotkey in the outer vault, you’re right, it did open the daily note in the nested vault, however, i was entering 1-2 letters before the text got all erased. so i ctrl-z in hopes of undoing it, but it was still a blank page.
after this happened, i have since moved this nested vault out into my desktop (daily notes still empty) so it’s not within my existing vault, and unfortunately i can’t repro the bug as well 
maybe i missed a step somewhere?