Work almost finished....but not able to share (and so preview) it on tablets!

I should have finished my app project, but I am still  having a serious problem: I can't download the app (book) I have shared with myself, in order to check it before publishing. I don't know wether the problem is in the uploading or downloading phase; or maybe both. When uploading (from my laptop), the bar seems to freeze at about 80%; and after several minutes, it appears a blank message on the screen (see attached image). After that, the uploading bar just empties and it appears the message "the app has been uploaded and the recipients have been notified by email..". When I take the iPad to download it; the downloading bar advances normally up to about 60%; then it freezes and just doesn't move any more. On the  google nexus tablet, though, it seems to finish downloading; but once the blue bar arrives at the end, the player just closes down; and once I reopen it; the app is not in the library; and I have still the red circle notifying that there is a new app to download (the same as before)

I don't think it is related to issues in the internet connection because I have tried in different access points with good internet speed; and I have had the same problem in all of them...

Don't know what to do... now it is almost ready to be published; but I wanted to test it before, just to see how it works on a tablet!

* I have checked all the file names in the app folder and in the Builder, since I have found that non English Characters or letters with accents (á, é, í, ó, ú), normally used in Spanish words, may cause problems; and I removed all of them. But still having problems....

** I am running the most recent updates of builder / player in Macbook Pro-Retina and iPad2. I have had this problems also with past versions

*** My project weights about 130 MB. I don't have this problem with small apps (2 pages, just for testing). I am able to succesfully share them with myself

**** When I try to load my project to InteractCloud; the system asks me to upgrade to publish membership. But I have already done so! and effectively logged in with my username

Sorry for the lenght of the message. I wanted just to give you all details that might be relevant

thanks for helping

Pablo