Ah. Here's the problem-- containerPath is not listed as one of the supported parameters for Query web part insertion:

https://www.labkey.org/wiki/home/Documentation/page.view?name=webPartConfig

Sorry, I had wikis on the brain and misread that you were inserting a wiki web part, not a query web part.

Thanks for suggesting the admin link for "current container ID" - would you have an estimate of how often you've needed to use this? My impression (could easily be wrong) is that this info would not used anywhere near as often as the other links in the dev menu.

Thanks,

Elizabeth