Mi 360 Home Security 2k - Video missing

[Pucmahop]

Hello,
I recorded a long (few hours) video, when I was done and hit the stop recording button, it didn't react. I tried a few times. After few moments I accidentally closed the app. The video is nowhere to be found. But the app has 26.5GB. (Which it didn't before) Is the video recoverable? Where can I found it? Are those just stuck cache? Hiw to delete it without deleting orher stuff? What tk do next time I try to make a lon video
?

Thanks