Toggle Block animations not working

I am trying to programm a block that toggles between a solid and a transparent animation, with the corresponding "blinking" animation in between, making that 4 animations. I want them to switch after a specified time. I tried out multiple logical ideas, going as far as asking ChatGPT with no luck. The "blinking" animations are skipped, or it doesn't happen anything at all. For this take on it, the animations aren't doing anything at all.

This video explains how to use the basic events, of which "Update" is the most important:  https://youtu.be/j10SMwy2prM
It should explain how timing works for that events, which is your issue at the moment.