This is probably not a common issue, as most have one device reporting to the the Ecowitt.net site.
But if you have more than one, you may encounter an issue when arranging the tiles. If you have something like 8 soil sensors reporting through one, and 4 reporting through the other, arranging the tiles on either will mess up the other one. I believe I know why, something like a soil sensor for each console is reported as something like CH1 soil to the site. But you also have a CH1 soil on the 2nd device. I believe a cookie is being dropped for your arrangement on device #1, and also being read when you look at device #2, and vice versa. The actual names you apply to the sensors seem to stay (I could be wrong on that).
When I say cookie, I mean storing the data on your placement, may not be an actual cookie (stored local on your PC), but something server side.
So what is missing is device or ID , then sensor name and # and placement in the storage. What I think is happening is only the the sensor name . and placement are being stored, which may be common to both device 1 and 2. They should be stored with device or ID.
Anyone else seen this?