Pipeline Execute - Reuse & Pipeline Variables

Hopefully quick question as I debug a child pipeline:

Can I use pipeline variables in a Pipeline Execute snap while running in reuse mode?

Thanks!
Andrew

You can, but the parameter values cannot change between documents. For example, if one of the parameters has the expression “$foo”, the value of “foo” must be the same in all the documents.

Ok, that’s what I thought. The pipeline is failing inexplicably when in “reuse” mode, even though the pipeline parameters are constants. Must be something else!