After upgrading my nexus 5 to marshmallow the other day I get this problem with texting. If I'm talking to someone back and forth (so far noticed only with Iphone users) we would exchange several messages no problem but then I won't receive their messages (although they've sent them) until I send another one of my texts and then it will load all the texts they sent me. Textra app even puts two time stamps on those messages with when they were sent out and when they appeared in the app which I've never seen it do before. I tried a google texting app and another one but that didn't help. Does anyone have an idea of what could that be caused by?
Problem with text messaging