Auto ML error: connection was forcibly closed

[ImkeF]

Trying out Auto ML with a regression analysis. When training the model, getting this refresh error-message:

Tried it with 2 dataflows, both the same. 

[v-chuncz-msft]

@ImkeF 

This could be related to a query which imposes undue memory pressure. You may try Optimization guide for Power BI.

[ImkeF]

Thank you, @v-chuncz-msft ,

the issue was solved by updating a gateway (which hasn't been used in the solution).

Strange, but it's working now.