Hval did not share a specific reason for the cancellation, but artists like FKA Twigs have struggled with obtaining timely U.S. tour visas under the Trump administration.
D'Angelo Cancels Headlining Roots Picnic Performance to Recover From Surgery
It is with the deepest of regrets that @must cancel my performance at the Roots Picnic in Philadelphia next weekend due to an unforeseen medical delay regarding surgery.