
Users with the same Profile and permissions land directly into Salesforce.
The bad URL looks like this:
https://rochestercommunityconcertband--npsp.na53.visual.force.com/apex/NPSP_Resources?sfdc.tabName=01rf20000008cu7&vfRetURLInSFX=%2Fhome%2Fhome.jsp&nonce=2cb7f9a137f217abbd8872b1e4f07fa722b2620ac123a67f10b2610dfdc53949&sfdcIFrameOrigin=https%3A%2F%2Frochestercommunityconcertband.my.salesforce.comThe good URL looks like this:
https://rochestercommunityconcertband.lightning.force.com/lightning/o/Campaign/list?filterName=Recent5 respuestas

Since it was a recently created user and this was her first login, I inactivated her User record and created a new one. Lands on a normal navigation item now.