Bugs like what you describe get found and fixed within the first day or two of a patch that introduces such a bug. If you're having issues this late, regarding something that literally thousands of people play every day without issue, it's probably something wrong on your end. What you describe regarding lag and being locked in Step sounds to be plainly just that: lag. When you're having connection problems, your requests to perform actions might not reach the server, or you might not receive the server's response to those requests, either of which would make it look like you're "locked" in some state.