Some background: I started this world during the snap-shot phase of 1.14's development. My base is located very close to where I spawned in the world and a couple of hundred blocks away from the closest naturally generated village. My base is located at y-level 11 and I have started a village down there from curing zombie-villagers.

If I enter my base with a bad omen effect I will trigger a raid. The raid will start on the surface and when you go up to the surface the raid meter is no longer showing. In 1.14 the raid transpired as intended, even if the raid meter didn't show. In 1.14.1 I get the bad omen effect from killing the pillager leader from each wave of the raid (as shown in the screenshots), which means if I beat a raid and then go down to my base I can instantly trigger another one.