Core Apps » ChatSecure:Android

Bob and Alice use jabber.org (doesn't know if related)
Bob and Alice start encrypted chat (all green)
Bob want to send a file to Alice, from the menù he selects "take photo". Photo is saved in Bob:/sdcard/DCIM/

Now a lot of problems:
1. Until Alice accept (or drop) the photo Bob can't send her messages (all are marked with X instead of V)
2. Bob can't see a preview of the photo he taken (it's a green file)
3. When Bob try to open the photo from chatsecure instead this app is open (previously installed)
https://play.google.com/store/apps/details?id=at.markushi.expensemanager
asking to restore a backup

If Alice accept file all previous messages from Bob are delivered (1)
File is saved in Alice:/sdcard/Downloads/
4. Like Bob, Alice can't see a preview of the photo (2)
5. If she try to open the file, chatsecure crash.

Bob and Alice running the same version of chatsecure (latest on play store)