Your problem is there's no where for the items to go on the receiving end.
The solution was posted, but didn't state why it was a solution.
You need an ME interface to use Item tesseracts with a ME system, not an import bus. Think of the item tesseracts as a pipe if anything, an interdimensional pipe. To pipe items into an ME system you don't use an import bus, it won't even connect, so it also doesn't work on tesseracts. Whilst an ME interface is a valid inventory for anything that can import/export with a chest, one such things is an Item tesseract which will export anything to a nearby chest, and thus will also export to an interface