strange screen artifacts when modeling
Description
When modeling, there are sometimes some strange artifacts that makes the diagram disappear until you zoom out or move your mouse. It is easier seen in the attached video rather than with a text description of the steps to reproduce.
*Expected Behaviour:*
The diagram is stable.
*Current Behaviour :*
The diagram can disappear until you move your mouse or zoom out.
The issue occurs in M10 as well but it is not currently possible to select M10 in Jira.
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Category 2