When executing queries in SQLYog 8.2, it appears that if I execute a query that is not wider than the results window and then execute a query where the results ARE wider than the window, the horizontal scroll bar is not displayed until I either execute the query again or resize the results window via the splitter.
We made one more fix for this issue. So, could you please try again with this special build 8.23.1 (not release) and let us know whether it solves your issue.