Ebay: Possibility for price proposal disappeared?

I want to sell my laptop on eBay. I set 1 euro as the starting price and also activated the price proposal option.

Now I have received a bid and the Buy price button is no longer displayed for buyers.

Is that normal? Why is that? Can I still change that?

I thought price suggestions would always be possible.

Well, when an auction starts, it is logical that the price proposal disappears. It's an auction, but you can set a minimum price that has to be offered.

I only know the price proposal in connection with the buy it now option.

Oooh somehow i was confused. This price proposal is available with offers with immediate purchase (fixed price). It really doesn't make sense at an auction