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Rendering issue: Unable to switch to Numbered Notation (jianpu) for specific tracks in v1.8.4

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#2,976 3 comentarios 0 reacciones 1 asignado Ver en GitHub

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@Danielku15 ya está trabajando en esto.

Desde el 26/10/2026.

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Descripción

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AI authorship

Written by a human, no AI assistance

Current Behavior

When loading certain Guitar Pro files (e.g., the attached test.gp), switching a specific track to Numbered Notation fails to render. The score area remains blank.

I have confirmed that this bug was not present in alphaTab versions 1.6.0 and earlier. It seems to have been introduced in a later version (I am currently testing on 1.8.4).

Please note: If I manually change the display mode of this problematic track to Standard Notation or Tablature , it renders normally. The issue only occurs specifically when enabling Numbered Notation for this track.

Expected Behavior

When I set staff.showNumbered = true (and disable other modes) and call player.render(), the track should correctly render the Numbered Notation on the canvas, just like it did in version 1.6.0.

Steps To Reproduce
  1. Download and load the test file (test.gp) provided in the "Anything else?" section below.
  2. Locate the specific track named "solo" in the score (note: it initially renders fine in standard notation or tablature, and I have randomly tested many other scores with the same issue).
  3. Try to switch the display mode of this track to Numbered Notation using the standard API (e.g., setting staff.showNumbered = true and updating the settings).
  4. Call api.render().
  5. Observe that the canvas remains blank (or there is no response/change) and the numbered notation fails to render.
Link to jsFiddle, CodePen, Project

No response

Version and Environment
[AlphaTab][VersionInfo] alphaTab 1.8.4
[AlphaTab][VersionInfo] Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36
[AlphaTab][VersionInfo] Platform: BrowserModule
[AlphaTab][VersionInfo] WebPack: false
[AlphaTab][VersionInfo] Vite: false
[AlphaTab][VersionInfo] Window Size: 1529x1152
[AlphaTab][VersionInfo] Screen Size: 3840x1200
Platform

Web

Anything else?

I am attaching the problematic Guitar Pro file (test.gp) for your debugging.

test.zip

Lenguaje dominante
TypeScript
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