Bug share a picture to kontalk app to a user often does not insert it into chat.

[freddii]

Expected behavior

I take a screenshot with my phone.
Then i share it with kontalk and with a user.
Then it should post that picture into the chat with that user.

Actual behavior

I take a screenshot with my phone.
Then i share it with kontalk and with a user.
Then there is no picture posted in chat with that user.
The problem is that the bug is not reproduceable everytime.
For example i try to share it again and again with that user and on third time for example t works.

Environment

Kontalk version: 4.4.0 (500) Google Play

Android version: 5.1.1