Our game has a lot of lighting, but I wouldn’t say an out-of-hand amount of lighting, when I first playtest, it starts as pitch black then the lights all load in near instantly, but sometimes for VR players or regular players, it’ll just stay dark even if they rejoin. I’m unsure what I can do to fix it as this problem has lingered for years.
Here’s what it looks like:
Our lighting settings:
UPDATE:
It appears users who have had this tend to occur if they have high ping, if they move to a lower ping server it resolves itself.
Still experiencing this issue, if anyone knows how to remediate it, I would appreciate it!
for some reason, i have no idea why because if this was any other engine pulling shit like this everyone using it would leave - roblox doesn’t let us control the bake map update rate, just like how you can’t force your game to have max render distance regardless of the player’s quality settings (so you know, they can see the game unlike how it is currently lol)
i didn’t know it was THIS broken though. another reason to just not use it until they fix it (which will probably be i’m not joking 5 years, lighting has been this broken since it was released over a decade ago. love the shadows that have a max render distance of less than 100 studs too!)
It would be really nice if a roblox staff member could at least acknowledge this so I know they’re aware!
Hello, thank you for reporting this issue. Is it possible for you to provide a placefile we could reproduce this issue? Thanks!
Send me a private message and I will send it over.
Can you DM it to the Logs / Crash Dumps / Other Bug Files group and link to the DM here. This will link is only viewable by Roblox employees, thanks! 
We are now frequently experiencing this bug; Five Nights TD 2
I just did it! Hopefully, this is resolved soon.
Just shooting back for any updates on the subject matter as I haven’t heard anything back from the group!!
We have received the placefile, but are still unable to reproduce the issue locally so far. Any additional details such as device info or specific actions that lead to this issue would be appreciated.
It doesn’t happen every time, but I’ve heard about it occurring frequently on:
I mean it occurs everytime I playtest on studio for the first 5 seconds. I am going to ask one of the players in question and will update you as well in the future.
“ive had this happen to me on my laptop but i always assumed it was just my wifi + bad laptop. after about 1-2 min sitting in a room like this the lights come back on for me”
Any update on the subject matter, been almost 2 weeks of nothing!
It seems the issue has been resolved for our game since our testers are no longer reporting this happening. If it does happen again, I will be sure to let you know.
The issue was gone for a bit, but it has sadly returned for Five Nights TD 2 
Thanks for the updates, we’re still investigating this issue. So far we’ve been unable to reproduce it locally so any additional information to identify a common cause is appreciated. Things like hardware info for affected users or what actions the user did before before the issue occurred, etc.
