Closing as not a bug. Remove the 'Solid' behavior from the player. It is not necessary, and it is by design that objects with the Platform behavior cannot move in to anything solid.
In future please do not email any part of a bug report - just attach the .capx to the bug. As per our guidelines it should be created from scratch in a new project with the minimal events and objects necessary, and then you can make sure it doesn't use any artwork you don't want to share either. This makes it a great deal easier to deal with the bug report.