Innova custom component

Hello everyone,
I recently installed this component to manage 4 fan coils and I am definitely satisfied.
I just have a problem. I can’t have 4 fancoil at same time. The fourth item is correctly added but no device or entity appears.
I also tried to remove all items and start again. But I always have the same issue with fourth fancoil.
Take note that I try any fancoil and they work. I can’t have more than 3 items at same time.
Has anyone already had the same problem?