No, I have no issues with my ROBLOX client. I just cannot access studio when this happens. The problem gets fixed after some time in studio, however I keep getting the error again and again.
Once I get the error code, it takes a really long time to get fixed by itself (without me doing anything). The fastest it got fixed was after 1 hour, longest i had to wait was more 1 Day+. I don’t know whats causing this, gets quite annoying considering its repetitive.
Playing games as in testing mode in ROBLOX Studio?
If its playing games through ROBLOX Player Launcher, could you attach a screenshot of the error code. It’d be quite weird to get this error code on the ROBLOX client.
I can confirm that this is still happening to me, it gets fixed much faster but it happens atleast twice a day for me on a daily basis. I have to wait about 2-3 before I can use studio again.
Sadly, yes. It is still much better than waiting for a day or two (when this first started to happen). I hope we can get a fix for this soon.
I can also confirm this happening to me, easy fix for me is to join open the game using the studio launcher, not through the Roblox site 
Good luck, hope this helps!
Still hasn’t received a full fix for it I assume. I am still getting the error code everyday atleast about 5+ times. I am only getting the error code when I’m inside studio and it just crashes randomly at random times. It gets fixed quite fast. However, I now have to keep saving my work before I start editing my base scripts as every change I make for testing purposes gets saved when the crash occurs. Hope this gets fixed soon.
I don’t seem to have this problem, but I hope it gets fixed soon!
I have a similar issue, however I can’t load in a game (group game) and it just crashes “An unexpected error occured and Roblox needs to quit. We’re sorry!”. It works in other games but for some reason this ONE game I try to edit, it crashes. TC was put off and on still no effect.
I’m really mad right now as I should finish stuff before deadline which is soon.
That’s been happening to me as well for the past 2 months. It took me 20 minutes to finally get on Studio but then I crashed straight away.
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Namely:
I just encountered this bug today, I reinstalled ROBLOX and it got fixed
I get the same error code mentioned in the title whilst im working on a project now. Once i restart studio, none of the materials, textures and animations dont load up. This gets fixed if I restart studio again.
I’ve been locked out of studio for the past 4 hours yet again. Same error code, when i was working on my project. Seems like the issue got worse yet again.
I just reinstalled Studio, but the same thing keeps happening
Its been over 4 months and this is still happening to me. I can’t get much done due to this. I hope Roblox releases a fix to this bug soon.
It could only be happening now possibly due to the site issues;
See this post
Some of my team-creates games won’t open and just get stuck on a load screen. 
Error started happening again, found out something weird in the process. Connecting to a VPN immediately fixed the issue for me?. I dont know how this works, but it works. Let me know if it fixed the issue for you.
Hello! We’ve received reports that this issue is still occurring, and have filed a ticket to our internal database.
Please file new bug reports if this persists