currently we're struggling trying to filter price list items based on a price list that is given by a record from the modeldrivenformintegration (Model Driven App).
It was not even possible straight away to add Price List Item at all as a data source. I needed to switch to the new data source experience. But still I cannot filter the items as it says the pricelist field cannot be expanded or something like that. Maybe my formula is wrong, but seems like price list & price list item has a special role here.
First picture shows my first try which didn't work as it seems like the right side of the formula is a record and cannot be compared directly.
Second picture I tried to get the Price List (unique identifier) of the record itself by saying "Pricelist.Pricelist" which works in design time but leads to the attached error in runtime.