I've been noticing that too sometimes they work sometimes not... When they go to the wrong place I'll leave them there then try again in the spot I want them and I believe that works then go back delete the random ones BUT fully agree they have become PITA for some reason
Or another issue I swear I have is the post is not what I proof read it as and edited stuff will still be wrong after correcting and previewing then i'll have to edit the post again after it's been live