
When you load a project to view it with Unchive, occasionally you'll run into function/procedure and method blocks of code not showing (showing a faded yellow bar).
I figured out that there are certain blocks that cause this issue... If those problematic blocks are present anywhere in a procedure or method, it will result in a yellow bar shown in Unchive.

"join items using separator" block is one of those blocks causing the issue.
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#23 (comment)
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#26 (comment)