Not receiving pictures in a group chat with iPhones?

[AC Question]

I am on an HTC One M9 and I am in a group chat with a bunch of iPhones. I can send and receive texts fine but when my friends send pictures, I don't get them. They do get my pictures though. I am using Textra.

 

[Rukbat]

If the picture is larger than 1MB you won't get it. MMS is limited, iMessage isn't.