Dynamic Lightning with Fog of War help

Hey guys, we had to switch to Roll20 recently since our schedules changed and I am trying my best to soak it all up to DM the campaign here. I have a small problem that confuses me with dynamic lightning and advanced fog of war. I want to combine the two functions where they see what the tokens see but also have sight of the rooms they previously checked out. English is not my mother tongue so Ill try to explain through pictures: This token has a darkvision sight of 60/20 and I have his vision selected with Ctrl+L. The page settings are: advanced fog of war, dynamic lightning + force line of sight and restrict movement. Now the token can see the map in his radius illuminated by his darkvision, but the path to the left where he came from is completely dark. On my random test map however, these rooms stayed visible on the map in a dim light. That way they dont forget what was behind them. I feel like this is a really dumb, obvious and trivial problem but I cant fix that for my life. What am I doing wrong here?

Ctrl+L will only show you their current vision (I believe...). The best way to check individual player view is to have a second tab (maybe in another browser or incognito mode) with yourself logging in as a player (found in the options menu, this can be right clicked and saved as a bookmark for instant player view access). You'll also need to ensure that you are specifically named on the character journal as being able to edit that sheet so that you can effectively see the map as a player would. I hope that makes sense, let me know if not and I'll try another method to explain myself... pictures or an interpretative dance perhaps :)

Hey Ziechael, thanks for answering :). You are correct, when I am connected as a player and have permission to edit the sheet the vision for the player is exactly as I want it to be. (Ignore the chunk of mountain, I accidentally flung the token through a gap into the wall). So the character has his vision, but the fog of war is gone in the places he previously visited aswell.  Thats perfect, but I could swear that I saw this kind of vision while testing aswell, and I was not connected as a player at that time. Or is my mind tricking me.. But thank you for the solution :D

Happy to help! You likely did see it working as intended in testing too but it can be easily skewed by a DM's omnipotence so this approach prevents false positive/negatives :)