'Untoggle invalid syllables' button not unttogling invalid syllables

[JoyfulGen]

I uploaded Salzinnes folio A38v for review and I got three invalid syllable notifications; all three syllables involved have a precedes tag that refers to a syllable that doesn't exist. Because of this, I can't select these syllables on the page. However, when I click on 'Untoggle invalid syllables', nothing happens!

Video demo:

Untoggle.invalid.syllables.not.working.mov

This is the error message on Neon:

• <syllable> (te) with xml:id: m-833d80cb-ecf1-4f0c-b8fc-03b49373368a is missing the following part
• <syllable> (nes) with xml:id: m-4f2f3d1f-1b08-48f8-a393-240f8b03a77f is missing the following part
• <syllable> (gi) with xml:id: m-caf26c17-8599-4921-b461-aefd3b805faa is missing the following part

And this is the MEI file I uploaded:
CDN-Hsmu_M2149.L4_A38v.mei.zip

[yinanazhou]

Hi @JoyfulGen, I've pushed the changes to Neon staging.