I've isolated the issue to BanditUserInterface/BUI_MiniMap.lua lines 173, 174 within the function BUI.MiniMap.Show(). When Bandit sets up the minimap, it looks like this method makes a global call that effectively imposes itself over every other Addon including the Zygor guide. And if I'm not mistaken, the main map itself dubs as the mini-map, which may explain why it's constantly appearing.
I keep waiting for updates the last one was the begining of Oct and the next was supposed to be the begining of this month. Now we are close to the end of the month and nothing. The bugs were never fixed, the guild will revert itself to quests completed. Just sort of holding our collective breath. Can we please get a bug fix and update soon please? I know there was BlizzBon and a WHOLE lot of new updates but there have been patchs and a ton of stuff. Please!!!
If you're in a big hurry to hit the end do these two things, run each dungeon at least once and complete the quests inside them, dungeons give HUGE amounts of experience for their quests last I knew and que for a battleground every so often. While it's not the fastest leveling, it mixes things up a bit and gives you a break from the grind, and if you're not crazy into the story it's a huge grind.
I only subscribed about 2 days ago after coming back to WoW after 6 years. The game has changed so much since I left right around the Cata release. I decided to start fresh on a new server. I still had all my old links and logins to places like Curse, WowInterface, etc. Loaded up all the addons I had favorited years ago (of the maybe 1/3rd that were still maintained). Got to level 20 in a few hours of playing. Had to look a bunch of stuff up.