Ran into a nasty issue in Chapter 1 - was playing a Paladin, intentionally broke my oath. Gale died, tried to resurrect him via Withers and he wouldn't do it until I restored my Oath. This occurred when I acquired Withers as a Veangence Paladin, then broke my oath after - he would not do anything for me until I restored it.
Also, adding my 2 cents on Oathbreakers and respeccing etc. The fix should be fairly easy. If you break your oath you character is now flagged and can only ever respec into a Oathbreaker Paladin - the other Oaths are disabled for that character until they are restored via the NPC in camp.