Issues with FTP test

I did my first FTP test this morning and have a couple of issues:

1. Edge and Garmin connect seem to use different weights. Connect uses the old first set weight, the Edge the most recent one.

2. I did the test with the Tacx iPad app which lost connection a couple of times during the test (argh). There are How can I see, if the test was actually valid?

3. If the test was still valid FTP is not updated but still on the old standard 200W, however the power graph shows the correct 229 Watt in the 20 min section. Why is this not taken as new FTP power?