Greetings,
It seems like I've found a bug in xLights Ver 2019.43 for the Mac, which was not in Ver 2019.33.
Here are the steps needed to reproduce this problem:
1. Create a new show directory called Test
2. Add the following E.131 Lighting networks
-- Unicast
-- IP Address: 192.168.1.220
-- # of Universes: 4
-- Uncheck One Output
-- Click "Ok"
3. Change the 1st Universes' last channel to 300
-- Click "Ok"
4. Go to the Layout Tab
5. Add two new models using "Create new Downloads"
-- Boscoyo Studio --> Halloween --> Singing Elements --> Singing Jolly Rodger
-- Boscoyo Studio --> Christmas --> Singing Elements --> Singing Babby Shark
-- Click "Save"
6. Change the Start Channel on the Singing Babby Shark
-- Click on the Singing Babby Shark
-- Click on the Universe Number
-- Use IP Address 192.168.1.220, and Universie 3
-- Click "Ok" and "Save"
7. Mouse click on the Layout black background... the Shark model disappears
Note, if you mouse over the Shark model, the channel map details appear.
Let me know if you have any questons,
Scott
