[GAMEPLAY] Can't Leave The Fountain (Mac)

I'm pretty sure that this bug has been posted many times before, since it's been happening for quite a while, but I couldn't find any other thread on it.

I'm a Mac user, and every now and then, I load in but can never leave the fountain to go into my lane. I can use abilities and walk around the fountain just fine, but I can't actually leave it. I can flash over the barrier that I can't walk past, but the champion will immediately walk themselves back into the fountain. Same thing happens if I TP to a tower. The only way to fix it is to leave the game and then come back.

This has happened to me twice in the last two days alone, and I know at least one other person that this has happened to, who also uses a Mac. None of my PC friends say that this has happened to them.