We installed SPC rigid core flooring overtop of a cork underlayment. We made sure that the flooring under that was level (as much as possible) and the cork underlayment is specially mentioned as acceptable in the installation guide.

The flooring is comfortable to walk on but seems to generally have a small amount of give to it. We do not hear any crackling sounds and do not notice any issues at the seams. The give seems to be generally everywhere and not localized to one spot. It is barely noticeable unless we are thinking about it and looking for it. If we press down on the flooring with our hands it gives the slightest bit.

Some people say that any give is definitely a problem while others have said that a little give is normal for any floating installation.

Should we be concerned? Is there anything else that we can look into to make sure this is ok?

Thank you!