Shape Up

A BUG!!!
Dear Player,
There will be a bug you might experience and I really apologize for that. I don't know what kind of bug is this, I've just found it out while playtesting the level. The bug behaves like this: when you first open the level (scan it, open it for the very first time), you will just surprise that the win suddenly and unexpectedly triggered and turned green.
By that, you just complete the level and having the card check-marked without even playing it. I have tried to fix this bug many times but it still happens no matter what. The craziest thing about this bug is that it only occurs when you open the level for the very first time. And when you open it again, you'll see no bug.
This bug only happens occasionally. So, if you will not experience one, you're lucky. Yet you can still consider yourself lucky if you will experience one because at least, you have an experience.
I hope you understand. Thanks!

How to start?
This is a logic level. There are four shapes = buttons. You have to press them in the right order. Don't worry, there is really a big set of clues. Study it, figure it out.

Oops! I almost forgot... this is also an ability level.

Not a fan of such ball slider levels, but this is overall a nice and well designed level.

Not a fan of hidden levels and although I thought I had the sequence figured out none worked.

I can't jump over the hole to touch the star button. I'm totally stuck...

Nice visual design but little bit boring the ball management... Thanks!

@Anxo Varela you should find the right button combination to get a ball at the other side...

@gmacpro

Spoiler: Right combination

left, right, center and wait around 5 seconds...

I got the check-mark after putting the ball into the right hole, so something must have reached the win but I do not really understand the clues or the whole puzzle.

Yes, I see the correct combination at first. But I didn't see the balls bouncing from their holes. I am trying to guide the ball to the door but I found the mechanism a bit random.

Note:
After pressing the buttons in the right sequence, please wait for at least 5 seconds and then you'll discover the ball appeared that have emerged from under. Pressing the buttons needs short-time gap, you have to press 'em quickly from one to another.

Thank you! It's a beautiful design! I saw the ball appearing from the hole, but I can't guide it to the correct door until now.

I will try what you are saying this night

@chemi - I just redid the drop and I did your suggested combination and it worked so thanks.

@Logo - But I also did that combination previously among others as SUN/Circle are both round. Since that was a lot of ball work, I tried but didn't make it.

Pretty straightforward code/ability level with a great design!! I am not specially fan of this trick but this level deserves 5 stars!! Thanks for sharing and well done @Logo