"Anyone else getting an error with Palkia gyms?"

#PokemonGO: The last few times I've entered a raid and was ready to start the battle, my screen freezes at "GO". I have to completely close out the game to get it running again and have only been able to rejoin the gym successfully once. Just wondering if this is a common issue or if it's just me? This isn't occurring with the non-legendary gyms. via /r/pokemongo http://bit.ly/2TwAZgA