Description

Dragging a couple of paragraphs to a column crashes gutenberg

Step-by-step reproduction instructions

1. Create a column block with 2 columns
2. Create 3 paragraph blocks with text OUTSIDE the column
3. Press and hold Shit and select those 3 paragraph blocks
4. If you have the tool menu not fixed on the top, you should be able to drag and drop the whole 3 blocks with the 6-dots icon
5. Drg it and place it inside one of the columns

Expected behaviour

It should move all the content within that particular column, like always has been.

Actual behaviour

It crashes gutenberg.

Here is the the report:
TypeError: Cannot read property 'firstChild' of null
at pp (https://kiltros.cl/wp/wp-includes/js/dist/block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12:393446)
at https://kiltros.cl/wp/wp-includes/js/dist/block-editor.min.js?ver=390a9f83b606a55e8b523c4d16bdb08c:12:394426
at Bh (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:126:456)
at Dj (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:162:476)
at unstable_runWithPriority (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260)
at Da (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60:280)
at xb (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:162:231)
at Te (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:146:79)
at https://kiltros.cl/wp/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:61:68
at unstable_runWithPriority (https://kiltros.cl/wp/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25:260)

Screenshots or screen recording (optional)

Code snippet (optional)

WordPress information

• WordPress version: 5.8
• Gutenberg version: not installed
• Are all plugins except Gutenberg deactivated? yes
• Are you using a default theme (e.g. Twenty Twenty-One)?no

Device information

• Device: desktop
• Operating system: chrome os
• Browser: chrome 91