Section header has unbalanced brackets.
Genius guidance establishes bracketed section headers. Detecting a missing delimiter is also a product-safety rule from the parser contract, not an explicit Genius catalog of every malformed case.
Example
[Verse
Line[Verse]
LineThe fix
In the workbench this finding carries one control, labelled Insert the missing closing bracket. The fix is classified as safe, so pressing it applies the edit directly — one press, one undo step.
Source
The guideline this rule enforces, as cited on every finding it reports:
Use song part headers verified Section headers, performer legends, and four differentiation styles