Adding regular, non SHE hosts works fine, however I can't seem to add Self Hosted Engine to additional physical hosts.

I think this is the problem, but I don't know what the solution is:

2018-05-29 08:00:52,502+0100 ERROR otopi.context context._executeMethod:152 Failed to execute stage 'Misc configuration': Cannot resolve ovirt_hosted_engine_ha module

Deploy log attached.