Bug on GNU/Linux gnome with the icon and multiple instances

Describe your environment

Please specify the following:

• OS: Fedora 34 with Gnome desktop
• Jami version:202105282159
• What build you are using: jami.net

Steps to reproduce

Note: Better the scenario is, better we will be able to reproduce and debug.

• Can you reproduce the bug: at will
• Steps:
  1. Open jami 2. (You can reopen another Jami)
• Actual result: When I start Jami, it launches well, but the icon is a generic one (not the icon of Jami) and it is written net.jami.jami-qt When lauching from the command line I get:

QSocketNotifier: Can only be used with threads started with QThread
QDBusMarshaller: type `VectorString' attempts to redefine basic D-BUS type 'as' (QStringList) (Did you forget to call beginStructure() ?)
QDBusMarshaller: type `MapStringVectorString' produces invalid D-BUS signature `a{s}' (Did you forget to call beginStructure() ?)
QDBusMarshaller: type `QMap<QString,MapStringVectorString>' produces invalid D-BUS signature `a{s}' (Did you forget to call beginStructure() ?)

I am also able to lauch several instances of Jami, which is weird.

• Expected result:

Additional information

Several instances

Several instances, view of the icon tray (appindicator extension for gnome)