Help Can't see who is texting me

[r0bling]

Hey guys, every time I get a text message from someone, the name of the sender doesn't appear although I have that person saved in my contacts. For example, I'll get a text from "Mike" who's number is saved on my phone but the message will come up as his phone number so I never know who is texting me. Does anyone know how I can fix that? I don't know ifI explained it clear enough. I hope you guys know what I'm trying to say haha. Any advice would be appreciated. Thanks in advance!

 

[quickaudi]

Try clearing data and cache for the messaging app? Maybe also for contacts...where are they synced from?