View disappeared after Property deleted

Hello

we had a common view which filtered to a certain boolean property.

This boolean we replaced with another property and deleted the old boolean property.

After the deletion of the property, all views disappeared, which had this old boolean in the filter configuration.

Is this normal behaviour? Are those views now in some deleted state or completly removed? Can they be restored somehow to just change the filter?

we also tried this also in a test vault and it resulted in the same behaviour.

Thanks for your answers

kind regards

Simon