Webstorm responsiveness interrupts
Recently I've been experiencing stutters in the responsiveness of WebStorm. I'm using WebStorm 2017.3 on macOS 10.13.3 with the IdeaVim plugin enabled (not sure if the latter is related). Checking the logs, I've found a recurring error that seems to be appearing a lot (see image). So far I've tried restarting the app, invalidating caches and disabling plugins, all to no avail.
Anyone else have this and perhaps knows how to fix it?

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the error comes from the built-in terminal. Can you check if the issue persists if all terminal tabs are closed?
Can you try taking CPU snapshots when WebStoirm runs slow? Also, do you have any build tools, etc. watching your files and generating stuff? If yes, did you try excluding build target folders from indexing (Mark directory as/Excluded)?
Hi Elena, it's remarkable how accurately you've assessed my problem with such little information! Yes, I do have the built-in terminal open and yes, a build tool watching my files was running (from this terminal). More precisely, I am working on a react app created by create_react_app and ran by npm start.
As per your suggestion, I've marked the "build" folder as excluded. So far, the UI stutters seem to be gone and no error are appearing in the log.
Thank you very much!
Great, thanks for letting me know! Should the issue occur again, please feel free to contact me by creating a support ticket (https://intellij-support.jetbrains.com/hc/en-us/requests/new?ticket_form_id=66731) or posting a comment here