I can't copy/paste right now in this one App. I have tried others and it is working.
If I select the first component and copy/paste (ctrl-c, ctrl-v) it while it is still selected, Retool hangs and I get this error in Chrome Dev Tools:
I have to reload the page.
Hi @bradlymathews! Happy to dig into this with you. Are you copy+pasting a single component or is the item you're copy+pasting containing multiple or large components? Also, does the copy +paste work if you try it in a different browser? 
I very commonly experience issues with copy/paste, especially when its multiple components. Additionally I've noticed a severe performance issue when an app has a lot of copy/pasted items. I've built out a few apps using a lot of copy/paste had performance issues then rebuilt it from scratch and it works fine. Seems a bit wonky.
I've just stopped using it.
Hey @stevenhdsdoor! Thanks for sharing your experience with us. Our team believes we have a solution for this and has a fix coming soon, but we want to make sure it's consistent with your scenario. Is there any chance you can share a screenshot of your app and what components you're trying to copy+paste or an export of your app? Feel free to email me at kenny@retool.com if you don't want to publicly expose anything from your app in this forum. 
It is when I copy and past anything, even a simple Text component.
I tried FF and I get the same hang (progress circle gif spins forever) and this error:
I copied the app and the corruption followed to the copy.
I exported the App and re-created from the JSON. The problem is still there.
@Kenny I've been experiencing this as well when copy+pasting, as well as when trying to duplicate a component. This morning I tried duplicating a single number slider input
@nathanlewis.dev @bradlymathews @stevenhdsdoor
Our team just recently pushed out a fix for this yesterday on cloud, but let me know if you're still experiencing this when using the copy+paste!
Still broken for me. I did refresh my app a few times first.
