Potion Brewing Glitch

After renting the Golden Cauldron and brewing a health potion, the potions menu glitched. I returned to collect my brewed health potion, only to see the Golden Cauldron tutorial messages. I click through these, tap the Golden Cauldron icon at the top, end the tutorial and try to click my hovering potion to collect it. The potion spins, but doesn’t leave the screen, and the game freezes until the tutorial begins again. I’m stuck in a loop until I force quit the game and reload. This glitch renders the entire potion brewing element useless which is now directly affecting progression through the game, as SOS and Event tasks require brewing potions in order to move on. It’s incredibly frustrating that I’m unable to fully enjoy the game - this glitch has been active for a month now. I’ve tried reporting the bug through the game three times and even left a one star review on iTunes in an attempt to get Niantic’s attention - but nothing yet. Please tell me I’m not alone with this issue!

I’m amazed there isn’t a discussion on here already about this game-breaking glitch: I have found a few other players online suffering from the same bug, but Niantic is either still oblivious to it, or choosing to ignore it.