The GM layer issue was probably the "Resolved a regression in Nightvision for GMs caused by refactoring of rendering code." part of the last update . This was a long standing bug that had been squashed, but seems to have temporarily been reintroduced. In general, any UDL reports should go to the Updated Dynamic Lighting - Feedback Thread , which is dev-monitored. There's no guarantee they will see reports elsewhere within the forums at large. The other alternative is to file a Help Center Request . It probably won't directly resolve your issue directly, but it does give them more data with which to attack the problem for all users. I think the grid problem has been brought up in the official feedback thread, but I don't follow that one closely. It might be worth a look and a report.