Gutenberg fails with wp 5.8

[dogrescuer]

I had to rollback to fix this. The WP 5.8 Gutenberg crashed with this info:

TypeError: Cannot read property '$el' of undefined

at new m (​https://bestredlighttherapy.com/wp-includes/js/dist/media-utils.min.js?ver=5e105975fcfe18922cd4f0163466f454:2:3795)
at Yg (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:68:243)
at rh (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:98:274)
at zj (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:228:490)
at Th (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:223)
at tj (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:152:152)
at Te (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:146:151)
at ​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:68
at unstable_runWithPriority (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260)
at Da (​https://bestredlighttherapy.com/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280)

I did turn off all plugins and switched to the default theme. Only rolling back the main version allowed me to get into Gutenberg.

[jim5471]

What browser/version are you using.

I had javascript errors when using an older version of a Firefox browser.

​https://wordpress.org/support/topic/5-8-beta1-feedback/

[karmatosed]

I just took a look at this and there is no error currently, which I actually expected due to the amount of time passed. There might be as suggested a few things at play here including the browser. For now, until we get more information I am going to close this. We can always reconsider once we do get that information and report upstream to the github repo for the core editor. Thank you everyone.