Do you have the same issue if you follow the OP’s steps to reproduce it?
• yes
Provide extra information to complete the original description of the issue:
• At one point the maximize mission steps button needs to be pressed for this error to occur. As a workaround In flatscreen minimize the mission steps window and the issue does not occur. Thia bug is easily reproduced and fixed as well.
If relevant, provide additional screenshots/video:
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