MMCTL Import: "Direct channel can only be favorited by members"

Hey Guys,

i have tried to migrate mattermost via mmctl.
The export of the source system worked without problems.

However, when importing I get the following error:

Data: map[error:Error during job execution. — BulkImport: Direct channel can only be favorited by members.

Does anyone have an idea what this could be ? The user is inactive on the source system,

The end result: the import is incomplete