First off, thanks for this great app. I have been using it with a naza controller for a while and it works great.
I recently tried to use it with an APM2.8 - firmware ArduCopter3.2.1 (latest stable). I am running the latest version UGCS (2.7.125-trusty) on ubuntu 14.04LTS. Telemetry is connected, I can send successfully commands such as "arm", but I cannot figure out how to upload a simple 4-waypoint route. I get the message "upload failed. Route not accepted."
The apm controler seems to be set up properly, I can upload a route from other gcs such as apmplanner2 or qgroundcontrol.
Attached is the log file (vsm-ardupilot.log).
I wanted to try alternative versions of UgCS to see if that fixes it but I cannot find links to previous versions for Ubuntu on the UgCS website - the repo only has the 2.7.125-trusty version available.