Product: PowerShell Universal
Version: 4.0.10
In v3.9.x I could add my repo with
Register-PSResourceRepository -Name companyPSRepository -URi \\company\uncshare\Install\PSModuleRepository -Trusted
which can be verified e.g. by
Find-PSResource dracoon
Same done in v4.0.10 results in the module config which shows the repo but does not find/list the given module.