Chat pictures not showing

[Paddy Gill]

Hi We have a client who have created Group Chats and generally all is fine, but some pictures are not showing - only the link to it.
Why is that?
Are there restrictions on picture settings??
Thanks
Paddy

 

[dceworks]

We are seeing the same behavior. 18.0 (Build 418)

 

[Vali_3CX]

Seems like the uploaded picture is a file with no extension.