BUG: metabox causing styling issues in Gutenberg

On one of my sites where I use Metabox, the Gutenberg editor's styling is odd-looking. Front-end rendering is fine, but Gutenberg is showing zero spacing between heading/paragraph blocks. In fact, there's zero spacing between any blocks whatsoever. I believe this is plugin-related and I also believe that the first error in the console is causing effects on the post.php's styling downstream from it. Here's what I pulled from the console.

Console error:

`
14:00:47.703 load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2 Uncaught Error: Syntax error, unrecognized expression: ##type_1:not(.rwmb-clone-template ##type_1)
at I.error (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:11769)
at Y (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:17234)
at re (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:20008)
at Function.I (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:7520)
at Function.<anonymous> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:2898)
at e.<computed> [as find] (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:1582)
at ce.fn.init.find (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:21991)
at ce.fn.init (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:22483)
at e.<computed>.<anonymous> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:2438)
at new e.<computed> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:1582)
I.error @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
Y @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
re @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
I @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
e.<computed> @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
find @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
ce.fn.init @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
e.<computed> @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
ce @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
get @ conditional-logic.js?ver=1725899036:16
getValue @ conditional-logic.js?ver=1725899036:323
(anonymous) @ conditional-logic.js?ver=1725899036:250
isLogicCorrect @ conditional-logic.js?ver=1725899036:214
(anonymous) @ conditional-logic.js?ver=1725899036:195
N @ underscore.min.js?ver=1.13.4:2
(anonymous) @ conditional-logic.js?ver=1725899036:188
N @ underscore.min.js?ver=1.13.4:2
runConditionalLogic @ conditional-logic.js?ver=1725899036:187
init @ conditional-logic.js?ver=1725899036:625
setTimeout
(anonymous) @ conditional-logic.js?ver=1725899036:647
(anonymous) @ conditional-logic.js?ver=1725899036:648
`
Next line shows some Bricks conflict:
`
14:00:48.485 dashboard.js?ver=1726331931:1 Element not found
14:00:48.602 dashboard.js?ver=1726331931:1 frontend
14:00:48.655 admin.min.js?ver=1724950110:1353 Uncaught TypeError: Cannot read properties of null (reading 'closest')
at bricksAdminMaintenanceTemplateListener (admin.min.js?ver=1724950110:1353:3)
at HTMLDocument.<anonymous> (admin.min.js?ver=1724950110:1502:2)
bricksAdminMaintenanceTemplateListener @ admin.min.js?ver=1724950110:1353
(anonymous) @ admin.min.js?ver=1724950110:1502
`
Then the next line shows more Metabox errors:
`
14:00:48.661 load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2 Uncaught Error: Syntax error, unrecognized expression: ##type_1:not(.rwmb-clone-template ##type_1)
at I.error (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:11769)
at Y (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:17234)
at re (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:20008)
at Function.I (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:7520)
at Function.<anonymous> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:2898)
at e.<computed> [as find] (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:1582)
at ce.fn.init.find (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:21991)
at ce.fn.init (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2:22483)
at e.<computed>.<anonymous> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:2438)
at new e.<computed> (load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5:1582)
I.error @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
Y @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
re @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
I @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
e.<computed> @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
find @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
ce.fn.init @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
e.<computed> @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
ce @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
get @ conditional-logic.js?ver=1725899036:16
getValue @ conditional-logic.js?ver=1725899036:323
(anonymous) @ conditional-logic.js?ver=1725899036:250
isLogicCorrect @ conditional-logic.js?ver=1725899036:214
(anonymous) @ conditional-logic.js?ver=1725899036:195
N @ underscore.min.js?ver=1.13.4:2
(anonymous) @ conditional-logic.js?ver=1725899036:188
N @ underscore.min.js?ver=1.13.4:2
runConditionalLogic @ conditional-logic.js?ver=1725899036:187
init @ conditional-logic.js?ver=1725899036:625
(anonymous) @ conditional-logic.js?ver=1725899036:642
dispatch @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
v.handle @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
load
add @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
e.<computed> @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:5
(anonymous) @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
each @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
each @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
Le @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
on @ load-scripts.php?c=1&load%5Bchunk_0%5D=jquery-core,jquery-migrate,utils,wp-hooks&ver=6.6.2:2
(anonymous) @ conditional-logic.js?ver=1725899036:641
(anonymous) @ conditional-logic.js?ver=1725899036:648
`