Happened on the 24 th of march 2019
Hoenn story bug: When interacting with the rival at Mt. Pyre Summit a text box with something like "NPC Message" (skipped it too fast to exactly read through it) appears, afterwards I was locked in place without a battle starting.
Solution is only to relog FAST (a slow relog with a minute inbetween brought me back to the pokecenter). After fast relogging the battle was skipped entirely and as if i had won the rival dissapeared.
This happened to at least one more player i know of.
