The Timbermaw Hold exalted quest The Brokering of Peace shows up as available on the map & minimap even though it follows The Root of All Evil.

https://classic.wowhead.com/quest=8481/the-root-of-all-evil
https://classic.wowhead.com/quest=8484/the-brokering-of-peace (Alliance version)
https://classic.wowhead.com/quest=8485/the-brokering-of-peace (Horde version)

Version 5.10.3

We should be able to squeeze this in for v6.0 release. Hard to test every quest in the game without help from the community. Thanks for all your reports.