Hello Sebastian
I found it here:
vSAN Build Recommendation Engine Health
Currently no 6.5 U2/6.7 U1 labs at home here (don't even ask but complete wipe-down was needed ) so I can't check now - did you check if applying the one with 'deploymentId=tba4919b-2dce-f4585-9556-a780bb9ac060' as the defaultmetadataurl resolves this by pulling current one?
Bob