Frontend - cannot change display fields list

Great product, congratulations…

However got into an issue with fields.
Example, I moved Type field from Display Fields to Available Fields:

Clickes Save, and Type Field is still there…Shouldn’t it be removed?

No error is showed in the log…
Also the order cannot be changed either…
What could be done?

And here is the screen after the save:

Might be an error with indexed search. But I can’t tell.
I opened a ticket for us to get into this. The functionality does not work as expected in dev version either.
Thanks for reporting it!