Similar to how Scryers/Aldor quests are only shown as available for players with that faction's reputation, it should also only show the available quests for the centaur faction that you are friendly with (Excepting the initial quests that allow you to choose the faction).

Hey @Cabro could you add a screenshot and/or the wowhead links for the quests in question? That really helps fixing them 😃

Sure!
Quests 1385 and 1382 are always available, how it should be.
Quests 1367 1369 1371 1375 1386 should only be available when you are Friendly+ with Magram.
Quests 1368 1370 1373 1374 1380 should only be available when you are Friendly+ with Gelkis.

Hey @Cabro I couldn't find an issue in our data. What version of Questie are you using and did you experience this problem on Classic Era/SoM or TBC?

I am using TBC version of the latest version. The issue is that Questie shows me those quests as missing prequest, instead of unobtainable, or missing completely from that list (just like SMV zone with aldor/scryer quests).
OK i can see the logic behind this, so I will close this. Thanks for your time!