Lorenz/Julian,
Our team would like to contribute with the testing of the V1.4.1 release. In particular with the indoors test-cases so please let me know if you have any particular test in mind that you would like us to run and report back here.
Two of our quadcopters are equipped with an Odroid XU4 offboard computer connected to the Pixhawk, a TeraRanger One sensor, a SF10 Rangefinder, three mvBlueFOX-MLC cameras, and TeraRanger Tower for obstacle avoidance. No GPS or VICON system though. They have been flashed with beta (the latest release candidate) and we have also installed QGC 3.0 so we are ready to help with the indoors test scenarios.
Best,
~~Al