v4.1.1.8 for should now be at that beta link if you check again. Please launch the app and if you are taken to a compose e-mail screen please sent the e-mail which is generated so that I can gather some details on this. If the app just crashes for you after a few attempts let me know here.
For those now asking for beta access, I believe I have enough people to diagnose the issue. However as and when we find the problem I will create a second beta which will be used to distribute the fix to all those affected temporarily whilst we wait for the store certification to come through on the main version of the app