Create new Task:
Name
Description
ect.

1. Choose: "Scheduled time" to define starting date
2. Do not select "Deadline" because the endtime is by definition +1 hour!
(So when I select 1 o'clock as start time, the application sets automatically the deadline to 2 o'clock.)
3. Click "Sync with Google Cal"
4. Loook at Google Cal -----> Nothing synced!
5. Go back to the task, edit task, and select deadline data picker, but dont change anyting, just click save with the automatically selected time 2 o'clock and save.
6. Sync - go to google - WOW! It is there.

So please fix that problem!