Whenever I try to change a sharers status or try to add new sharing members it then prevents my already existing co-authors from editing. They can log in and they are still shown as Co-Authors, but they can't edit. The only way to resolve this is to delete all members and start from scratch by adding them again, sending notification, and having them respond again. Am I going to have to do this every time? Oh, and then they end up with two copies of the project and have to delete one.
Sorry for the late reply.
We investigated the issue you have mentioned at our end, but the sharing worked for us correctly( Co-authors were being able to edit the document). To get a better understanding of the issue we would like to meet you online sometime in a connect session anytime you suggest.
You can drop me a mail at sunny at adobe dot com with the time that suits you.