1, the picture can't be sent because of the conflict between the downloaded new things and WeChat or some residual garbage.

2. There is also that insufficient storage space will lead to the inability to send WeChat pictures;

3. Sometimes, when the mobile phone system is updated and the software is not updated, there will be some situations;

4, it may be the relationship between network signals, such as low network speed, router settings and so on.

5, you can try to change some pictures, and suggest sending smaller pictures to try.