Event Code: VQSRC-2637-A When Linking a New Activity to an Existing One Under Exclusive Mode

(Doc ID 2298016.1)

Last updated on SEPTEMBER 27, 2017

Applies to:

Primavera P6 Enterprise Project Portfolio Management - Version and later
Primavera P6 Enterprise Project Portfolio Management Cloud Service - Version and later
Information in this document applies to any platform.


When attempting to link an newly created activity to another one, the following error occurs.

Event code: VQSRC-2637-A
TCVirtualQuery.SortRowCompare: Cannot sort items from different row types.

The issue can be reproduced at will with the following steps:

  1. Open a project in exclusive mode
  2. Add an activity
  3. Try to add link by clicking and dragging
  4. Notice that the added Link does not appear
  5. Click the button "Link toggle off/on" and notice no change
  6. Select ‘go to’ button on activity predecessor section
  7. Notice that a random activity disappears
  8. Try to go back to the original activity (Notice that relationship is shown in details box even though it does not appear on Gantt chart)
  9. Notice that the event code occurs




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