Write errors after upgrade to 7.0

Hello,

We are currently using a rather large stack, which we upgraded to version 7.0 two weeks ago.
After we patched everything and updated the file- and metricbeat, we get the following error message in Elasticsearch:

"Caused by: java.lang.IllegalArgumentException: Cannot write to a field alias [container.image.name]."

I searched for the error, but found nothing useful so far. Do you have an idea where the bug came from and how to fix it?

Many thanks in advance.

Best regards
Marius

No one knows any solution for this errors?

I welcome any replys.

Same problem for me with metricbeat 7.1.1.