When using "ToggleGroup" I used to get a lot of "readonly" is depricated, use "readOnly" message in the console - these are now gone, so something seems to have been updated.
hubspot ui-extensions upgrade to use Icon Component
SOLVE
Had the same problem also. The @hubspot/ui-extensions package belongs to the extensions app. You need make sure it is using the version 0.8.24, easiest way to do this is to uninstall the @hubspot/ui-extensions package and to reinstall it, from the src/app/extensions folder.
hubspot ui-extensions upgrade to use Icon Component
SOLVE
Hi, @Norgaard👋 thanks for your question! I'd like to invite some of our community members to the conversation — hey @dsmarion@Anton@alyssamwilie have you experienced anything similar? Or do you have any troubleshooting tips for @Norgaard?
Thank you very much for taking a look! — Jaycee
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