Galaxy APM Errors: Incomplete stack trace

Some errors in Galaxy APM provide what seems like an incomplete stack trace. Few examples:

Error: Exception in setTimeout callback:

[object Object]
Error: Exception from Tracker recompute function:
Error: Script error.

    at window.onerror (<anonymous>:0:0)

These don’t really tell me anything specific enough so that I can locate exactly where they’re happening. Is this normal? Is there a way to configure things to get more information?