This test checks if there are interactions where the reactant and the product are identical, in which case it may just be the compound moving around in the cell.
An interaction was found between two data nodes about the same molecule.
The interaction should be looked at. If the interaction is indeed a MIM translocation, the
GPML should be edited (it cannot be done in PathVisio 3.3) and the interaction type should
be set to mim-translocation.
If the interaction is not a translocation, then possible one of the data node identifiers needs correcting.
This WikiPathways Academy page gives more detail on how to draw molecular transport interactions.