Galaxy Tab 2 Sideload Issue

[Vickieski]

I use Calibre to manage my mobi books and wirelessly send them down to my Galaxy Tab when I want them there. This has worked very well for me for months. Then 2 weeks ago, I updated the Kindle App for Android and now Kindle locks up when I try to access a book I have sent from Calibre. The books I buy straight from Amazon always show up (of course). Anyone else having this issue? I have uninstalled, reinstalled, talked to Amazon Kindle tech and so far no one has a clue. I read where sideloads (I guess that is what this is officially called) wont work past ver 3.2.035. Can anyone confrm?

Thanks for any help!