One but I have seen is referenced here Tenant drop-down box not populating but I also see issues with some of the other drop downs. For example compute resource and business group are greyed out which I assume is related to the tenant not being selected although it seems like you should be able to select any of those all on their own.
I also just get a spinning wheel on the reservation policy... I can seem to navigate the list though and select a policy. When I submit the query I get back a list but the display on the table below is compressed and unreadable.