After upgrading to 4.0 the Envisalink plug-in isn't working and setup is behaving oddly
EDIT: Updated my RPi to a 4B.  Still having the issue.

**Description**
I have been successfully using HOOBS 3.2.6 with this Plug-in that brings my alarm system into the Home app.

After upgrading to 4.0.1, the Next and MyQ plugins worked great.  However, Envisalink did not.  After some attempts to trouble shoot, I thought I'd start fresh and removed the plugin and associated bridge.

I then added the Envisalink plug in, creating a unique bridge for it.  It all appeared to go well.  I then added to Home app -- and that setup flow appeared to be successful.  The bridge appeared in Home Settings but no accessories appeared in the room it was assigned to (or in any other room).  

When I return to Envisalink configuration to further troubleshoot, it no longer displays the GUI form-based interface but only the JSON file.  Edits to that JSON file cannot be saved.  (My other plugins still have the form-based UI.)


**Version**
4.0.100

**Did you upgrade**
Yes, I believe it was from the version I purchased: 3.2.6.

**Did you orginally upgrade to HOOBS 3 from HOOBS 2.1.1?**
No.

**What device are you using?**
Running on a Raspberry Pi 4B (EDIT).  I loaded your SW onto an SD card.

**List your plugins**
Nest
MyQ
Envisalink


**Post your config**
This is just the config for Envisalink. 
```
{
    "accessories": [],
    "platforms": [
        {
            "platform": "Envisalink",
            "password": "**********",
            "pin": "****",
            "host": "192.168.1.8",
            "deviceType": "DSC",
            "zones": [
                {
                    "name": "Front Door",
                    "partition": 1,
                    "type": "door"
                }
            ]
        }
    ]
}
```

**Post your log**
Note, the plugin is installed.
```
9/24/2021, 3:26:58 PM Envisalink Bridge starting
9/24/2021, 3:27:06 PM Envisalink Bridge WARNING No plugins installed.
9/24/2021, 3:27:06 PM Envisalink BridgeLoading 1 platforms...
9/24/2021, 3:27:06 PM Envisalink BridgeBridge is running on port 51826.
```

**Additional context**

