I am experiencing the same thing on MacOS 12.6 and in the script editor as well. I am receiving as low as 10-20fps after the update and it has destroyed my workflow.
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For those experiencing the performance issues on their Mac has anyone tried to remove their preferences? I have not tried yet, but I read an article from a couple of years ago saying this fixed it then.
What do you mean “blow away their preferences”?
Sorry, I meant has anyone tried removing their preferences.
Really cool update! However, sometimes when I open up my place files, the main viewport gets turned into a new window and can’t be put back. I can drag it out of the center and turn it into it’s own widget which fixes it, but whenever i try to dock it back into the center it returns to the upper left corner of my screen again.
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i went ahead and reported this, i traced it to using studio at large window sizes on high DPI screens:
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I’m also having a similar crash issues. After I was dragging a pin context menu and it disappeared, I deleted the registry key “Key_Current_User/Software/Roblox/RobloxStudio” which updated to the latest build. Now every time I solo play test, it crashes. However, I have my properties and explorer menu back.
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Will there ever be support for docking sequence widgets within other widgets? I’m not able to dock ParticleEmitter sequence UIs within other widgets anymore.
I’m not sure what happened, but I’m missing my property widget 
How do I fix this, I’m not seeing anything on how to fix this.
I’ve restarted my studio and it’s still missing.
Does it still appear as a button in the view tab?
If so then you probably need to reset your layout settings (as studio has likely saved a bugged position for the properties widget) This can be achieved by uninstalling and reinstalling studio (possibly easiest?) or a few other methods mentioned by others.
Yeah, no… I shouldn’t have to reinstall Studio. Let’s be honest, it’s going to happen again right after I reinstall studio.
I’m not even sure how I caused this, the last thing I remember before it triggered was me moving the layout on-top of the Explorer widget.
I found what is triggering it!!!
If you try to drag the widget on the pin icon, it completely voids all widgets “parented” to it, including the widget you tried dragging!
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Yeah this update is really buggy to be rolled out. I had something similar and I resized the explorer widget and the properties tab reappeared, but that just seemed random. Idk how this is an acceptable state to ship a feature to ALL users
Possibly found the issue… If you drag the window when it’s pinned on the pin icon, it will hide the window.
Update: EVERYTHING is reappearing after I restart studio… EXCEPT my property window… Something else must have happened to my property window, might have found 2 different bugs that void windows
I have an issue even if Im on the beta
My custom icon directory is missing? I searched it but I didn’t find it.
Does anyone ever have this issue?
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Once this refresh has rolled out for me, I cannot see the 3D viewport of the world anymore. This is a hindrance to most of my development time and I am sure that this is correlated to the new studio design change.
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My new Studio (this morning) looks extremely neat:
- I have the new docking guide navigation which is a huge boost <3, I hate old docking, it sucked! Also I can pin Toolbox and others for easier navigation
- The old icons of Explorer still there
- They probably HD (high-definition) some of the text & icons in Studio
Overally, I am extremely, extremely satisfied with this update to Studio 
. Please Roblox Team don’t change the icons → blue, keep my current version (pics below). I believe other developers will love this too <3
I was added to the beta, and some immediate criticism:
Widgets do not save their positions, sizes etc when testing in a local server with a client. Rather, the widgets now use positions of the default studio layout, which is suboptimal as I do not need the explorer, properties etc for each client - only the output widget.
Besides that, it’s cumbersome that I now need to drop the widget inside the small position docking UI rather than being able to drop it anywhere on another widget, or close to a border.
Another bug I’ve noticed:
If you have several widgets stacked on one another & then close one, the tabs UI at the top still remains:
Reporting another bug 
When you have multiple widgets stacked on one another & drag a widget out with its tab and then resize the widget, the second widget is suddenly placed under the one you dragged out:
we Definitely need an option to turn off the visual ui editor
we also could use a setting to switch from modern icons to classic and vice-versa
other than these two: everything’s great