SearchKit / API4 Explorer: Cannot select Contribution ID for ContributionSoft
Seems like something isn't right with the reference from ContributionSoft contribution id to the original contribution id. When trying to use the select2 for these, no matter what you enter, you'll get Loading failed and be unable to select a contribution id. API4 itself works as expected.
In API4 Explorer:
Tested on dmaster (5.59).