Folder name issue on Modern sites List

Hello guys,

we have a custom folder content type on SP Online, and when I am am creating the folder in "Classic experience" I am asked to fill both Name and Title.

When you try to create the folder in Modern layout, it asks you just for the title.

What comes next is that it appears to be ok, but once you select the folder, it's name changes to "13.000" and if you go back to see all the folders your name is gone until you refresh the page.

This does not happen when you create the folders using "Classic experience".

This is how it looks when you create the folder -> "Showing name issue"

Once you open it, the name changed to "264_.000".

And once you navigate back the name remains like this until you refresh the page.

Is there a way to force fill the "Name" via PowerApps form editor? Tried, but the name field seems locked.

Thanks