Assuming you are using Chrome, there is a known issue with the latest release of Chrome. You can read more here <a href="http://blog.roll20.net/post/168651383530/issue-wit" rel="nofollow">http://blog.roll20.net/post/168651383530/issue-wit</a>... Switching to Firefox might fix the issue while they work on a new version to roll out (currently in testing on the Dev Server). Otherwise, they have suggested using third party voice and video applications such as Discord until this can be fixed. Also, they changed the wording on the Join Game button to Launch Game several weeks ago. You can read the announcement here: <a href="https://app.roll20.net/forum/post/5862512/roll20-c" rel="nofollow">https://app.roll20.net/forum/post/5862512/roll20-c</a>... If you are having other problems, I suggest following the directions in the Submitting Bug Reports post: <a href="https://app.roll20.net/forum/post/3/read-first-sub" rel="nofollow">https://app.roll20.net/forum/post/3/read-first-sub</a>...