Notice: CMSB v2.62 Beta 1 (April 29th, 2014)
I fixed the field deletion from sections by removing the lines 427 & 429 from cmsAdmin/lib/menus/database/editTable_functions.php in the fiunction eraseField()
but no clues about the flash uploader.
the flash uploader started to work immediately after I disabled the new security feature:
Admin > General Settings > Security Settings > Check Referer (Warn on external referers/links and require internal referer to submit data to CMS).
I'm back on this beta release after being pulled away on some other projects. I'm going to try and get a updated beta out tomorrow that fixes that issue and a couple others so we can get this released. Sorry for the delay. Let me know anything you need in the meantime, thanks!
Beta testers will get an email shortly, we've just released beta 3 and created a new thread for it here:
Please post any feedback there.