Nuimo does not correctly reconnect following a loss of bluetooth connection

[pouldam]

If the Nuimo controller looses the bluetooth connection it tries to reconnect. It looks like it is succesful (checkmark icon on Nuimo controller), but the controller does not respond afterwards and the display remains black.

To Reproduce
Steps to reproduce the behavior:
0. Make sure the Nuimo is connected to the Raspberry Pi and everything is working as it should

1. Move the Nuimo out of bluetooth range from the Raspberry Pi
2. The Nuimo flashes the bluetooth logo to signal that connection is lost
3. Move the Nuimo back into bluetooth range from the Raspberry Pi
4. After a short while the Nuimo flashes the checkmark signaling that the connection is restored
5. Using the Nuimo afterwards nothing happens and the Nuimo display remains black.
6. Restarting the nuimo-openhab service on the Raspberry Pi fixes the issue

Expected behavior
After moving the Nuimo back into bluetooth range and seeing that is displays the checkmark, I would expect it to be working normally.

Sitemap and configuration
config.yml renamed to config.yml.txt to allow upload to Github
config.yml.txt

nuimo.sitemap renamed to nuimo.sitemap.txt to allow upload to Github
nuimo.sitemap.txt

Log Files
openhab.log
nuimo-openhab.log

System information(please complete the following information):

• Device: Raspberry Pi 3 Model B
• Operating System: Raspian Buster
• Python Version: 3.7.3
• openHAB Version: 2.5.6
• Bluez Version: 4.101
• Nuimo openHAB Python Version: 1.2-1-g46c8502