I have a few ideas.
Although Find Image is my favourite action of all time, it can be finicky and can completely fail in some cases. Especially on solid colours. Yours isn't solid, but it does have a lot of solid, especially around the edges. In a case like this I usually add a little bit more to the image, perhaps your button has a white edge around it, In that case, capture the white edge on the TOP of the image. It works better with asymmetrical images.
Another possibility, which we can't see, is whether you managed to put the exact same bitmap into the two boxes. They look the same, but form this side we can't be sure. Did you know you can click in the image boss and from there use macOS's copy and paste to copy it to the other box?
An even better idea is to use the FoundImage token. That token, according to the documentation, should contain the actual location value of the image in the first Pause statement. So you don't have to relocate it the second time.