Different behavior with and without using attribute

[tanker11]

Hello, I like this card very much, so I started creating some special summarizing cards for myself. Then I bumped into the following strange behavior and would like to know if and how can be resolved.

Scene1: Using 4 entities, the first one does not have any attribute Based on the last one, I activate an animation, and seemingly everything works well.

Scene2: The same code, but I replace the first entity to another one, and I use its attribute to be shown. The last one and the related animation remains unchanged. But, the animation does not follow the change of the entity, only if I refresh the browser page.

Please let me know how I could help in finding out the root of the issue.