The Cloud Foundry action pack's Push action is unable to push the entire contents of folder (including subfolders) if that folder has not been zipped. Only the first level of contents are pushed; no subfolder contents are included (the push is not performed recursively).
Until recently, the Push action did not support pushing the contents of an unzipped folder.
This issue has been fixed in the latest version of the action pack. A new action has been added to the Cloud Foundry Package: Push Application Advanced. This action will recursively push all contents of an unzipped folder.