[Nexus 5] Photos won't send using hangouts app

[torosFCP]

Photos won't send to my contacts, either from my saved photos or if I take a new photo using the camera icon.

The back camera used to send periodically to other android users.
When sending to iPhone users, only photos using the back camera will go through. When it does fail, it says the photo file too big for them.

Help?

 

[B. Diddy]

Welcome to Android Central! Hangouts recently got a couple of updates--are you using the most recent version? I'm on 6.0.107278502.