I did fix it for you, but please make sure to listen to all messages the NPC has to say. If there are dots at the end of the response it means that the NPC is not done yet, so you cannot walk away like you did before.
However, we will be fix soon enough, so it won't be possible to walk away with partial missions.
I had the same problem , I had task running ( had orange text every Alpha i killed ) but after killing like 7?( dont remember correct number ) i cheked my quest log and it was something wrong , so i decided to speak to npc to make sure all goin well and it wasn't... my all progres was lost , even tho i had orange text after killing alphas.
Please fix it for me becuase now killing even single alpha is big suckess, Check my logs and you will see that i had them killed .Its just not fair , hope you'll fix it