TLR (pages) aren't being fulfilled when there is an available non-requestable item at the chosen service point

Overview: TLR (pages) aren't being fulfilled when there is an available non-requestable item at the chosen service point
Steps to Reproduce:

1. Log into MG bugfest 
2. The user Mischo tries to place a TLR with pickup service point Chalmers Main Library. The user has no previous request or loans.

Expected Results: There is one non-requestable item available at this location (Main, Mammals6ref) and one requestable item available at another location (ACE, Mammals4). I would expect the request to become a page request for Mammals4.
Actual Results: Instead I get the message
Request not allowed
Page requests are not allowed for this patron and item combination
Additional Information: If I change the pick up service point to the same location where the available requestable item is, I can place the request.
URL: https://folio-project.slack.com/archives/C020TP1FVK9/p1658837040431329 
Interested parties: MarieWi