Cannot edit expand/show more block in container as reusable block

[bertiebaggio]

Describe the bug

Adding a (Stackable) container block that contains a (Stackable) expand/show more block which is then saved as a (Wordpress) reusable block results in an error, and the block is unusable.

To Reproduce
Steps to reproduce the behavior:

1. Add a Container block
2. Add an Expand/Show More block to the container
3. Save the resulting block as a reusable block
4. Click "edit" on reusable block
5. See error:

"This block has encountered an error and cannot be previewed" in Gutenberg visual editor.

In console:

TypeError: "t is null"
    value https://example.org/wp-content/plugins/stackable-ultimate-gutenberg-blocks/dist/editor_blocks.js?ver=2.6.1:1
    value https://example.org/wp-content/plugins/stackable-ultimate-gutenberg-blocks/dist/editor_blocks.js?ver=2.6.1:1
    React 12
react-dom.min.js:103:487
TypeError: "this.getActiveTabPanelContainer() is undefined"
    value https://example.org/wp-content/plugins/stackable-ultimate-gutenberg-blocks/dist/editor_blocks.js?ver=2.6.1:1
    value https://example.org/wp-content/plugins/stackable-ultimate-gutenberg-blocks/dist/editor_blocks.js?ver=2.6.1:1
    React 12

In addition, the block cannot be edited either visually or as HTML.

Expected behavior

Block should remain editable after saving as reusable.

Screenshots

Desktop (please complete the following information):

• OS: Linux
• Browser: Firefox
• Browser Version: 77.0.1 (64-bit)

[bertiebaggio]

Is there any further information I could provide on this that would help to track down and resolve the issue?

[bfintal]

@bertiebaggio Can you try it with WordPress 5.5.1? I tried replicating it now and it doesn't produce the error.

If it still does, would you be able to paste here the contents of your console log?

[blankart]

Already resolved in WP 5.5

[bertiebaggio]

I missed bfintal's comment, but can confirm it is indeed resolved now.

Thanks all 👍