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Issue with Master-Detail IG – Detail Grid Stops Updating

Hello,

I am encountering an issue with a Master-Detail setup using Interactive Grids in Oracle APEX 24.2.7

Problem
When navigating quickly between master records, the Detail IG stops responding completely.

At that point:

  • The Detail IG no longer displays any data
  • No further interaction is possible
  • A JavaScript error appears in the console
  • The only way to recover is to refresh the page
Console Errors
Uncaught TypeError: Cannot read properties of null (reading 'serverOffset')

Steps to Reproduce

  1. Open the page
  2. Quickly navigate between several rows in the Master IG:
    1. either by clicking rapidly on different rows
    2. or by using the keyboard arrow keys
  3. While the Detail IG is still refreshing/loading, continue changing the selected master row

➡️ Result:

  1. The Detail IG becomes empty and stops updating
  2. A JavaScript error appears
  3. The page must be refreshed to restore normal behavior

Workaround

As a temporary solution, I managed to avoid the issue by:

  • Blocking clicks on the master grid while the detail grid is loading
  • Re-enabling interaction only after the detail grid has finished loading

This prevents multiple overlapping asynchronous calls and keeps the detail grid in sync.

Thanks!
Comments
Post Details
Added on May 6 2026
#apex24-2-7bug, #interactive-grid, #master-detail, #oracle-apex
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