Can no longer see through eyes of tokens

I can no longer see through the eyes of tokens in order to check my lighting. Got a stream tomorrow. I had to log onto my second account to see if everything worked. Not good. Also, sometimes the walls block the GM from moving tokens, instead of just the players.

When you say you cannot see through the eyes of tokens to check lighting do you mean Ctrl+L? If so, that was never for checking lighting, only line of sight.  A dummy account is the recommended method for a GM to check lighting conditions.  As for walls blocking the GM from moving tokens, are you using any Mods (API scripts)? Perhaps one of them is interfering. 

While using Ctrl-L, the selected token will respect movement barriers. Gauss is right that the acid test for checking lighting is a  Dummy Account  (which apparently you have). The Dynamic Lighting Tool script (One Click) can help to diagnose most common problems. In the case where a token passes all tests, can be see through by the dummy account, but does not respond to Ctrl-L, sometimes a game refresh can help.