Weird issues with rendering blocks

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I was currently working on an emulator for a programming language I was making called "Emerix"
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and this happened. I don't know how or why. Perhaps this would probably be part of the list made by the community and moderators of "errors that cannot be identified or solved".
SnapError3

Notice the gap between the "Wait" block and the other code.

Yup, there are a few bugs in the display of scripts. Seems like low priority compared to other needs, but @cycomachead would this be a good thing to get a student to look into?

It happens when you wrap a c-slot around a running script.