What looks different on the edit screen, physical connection, and blend settings.

peporil

I'm so sorry for using a translator because I can't speak English.
I edited the face border, previewed it in physics and blend settings, and checked it. When I was working on something else because I thought it went well, I saw a phenomenon that looked different on the editing screen.
I don't know if this is an error or if I'm working on it wrong.
Have you ever witnessed this error?
This continues when the program is cycled.

https://youtu.be/2eCDyKqCBHY
It's a reference video.

peporil

I solved it.

obsidian

@peporil
Excellent. I'm glad it went well.
If you could post your solution if possible, it would be helpful for the future people.