Why are my contact pictures not my message contact pictures?

[AC Question]

I cant seem to find the answer to this problem, the only thing that i have seen is silomething about allowing permissions in the facebook messenger app and that is not the fix for my problem. After installing android 7.0 on my samsung galaxy s6 my contact pictures that are imported thorough facebook dont seem to be connected to messages. All contacts are merged. If someone calls me their facebook picture shows up on my phone, but in messages(text) the picture is justcthe default first letter of their name.