Uber announced in April it would launch “Uber Rent"—a new part of the app that would let customers rent a car by the hour from Getaround. The rider partnership appears to be quashed, at least for now, Quartz reported Tuesday. Uber emailed customers last week that it was shutting down the program “as we consider how to best meet the needs of our customers.” The move doesn’t affect Uber’s partnership that offers potential ride-hailing drivers cars through Getaround. It’s not a huge blow for potential customers, considering people can just download the Getaround app to rent a car. But the short-lived nature of the partnership means this race will be bumpy for transportation tech companies like Uber, Lyft, Lime and others trying to aggregate various urban mobility services in their apps. For Uber, a closer partner may be available for another try: Portfolio company Lime recently announced a car-share service in Seattle.