Error when clicking Convert to regular blocks

[jeffabailey]

When clicking Convert to regular blocks with a reusable block an error occurs.

This happens within the latest Firefox and Chrome browsers.

WordPress Version: 5.6
Current WordPress Theme: Ryan Pro version 1.3.15
Theme Author: ThinkUpThemes - ​https://www.thinkupthemes.com
Theme URI: ​https://www.thinkupthemes.com/themes/ryan/
PHP Version: 7.3.7

See this screenshot for context: ​https://1drv.ms/u/s!AuD4G8fUTARZgbG3btn_datyyOuute4?e=nt1SBu

Uncaught (in promise) TypeError: e.substr is not a function

b ​https://jeffbailey.us/wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
p ​https://jeffbailey.us/wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
s ​https://jeffbailey.us/wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
Yr ​https://jeffbailey.us/wp-includes/js/dist/blocks.min.js?ver=65abb57f00d1d2ab3d3b16331cbbf560:3
CONVERT_BLOCK_TO_STATIC ​https://jeffbailey.us/wp-includes/js/dist/reusable-blocks.min.js?ver=d969baba471ea99a0d94fb9fd94d284c:2
Redux 9
V ​https://jeffbailey.us/wp-includes/js/dist/data.min.js?ver=777f925bfe1a2aea2a86b7b9ae6aed25:2
F ​https://jeffbailey.us/wp-includes/js/dist/data.min.js?ver=777f925bfe1a2aea2a86b7b9ae6aed25:2
p ​https://jeffbailey.us/wp-includes/js/dist/data.min.js?ver=777f925bfe1a2aea2a86b7b9ae6aed25:2
onClick ​https://jeffbailey.us/wp-includes/js/dist/block-library.min.js?ver=f57ef2e7b4eafc2e0c68f14376de3b1f:38
B ​https://jeffbailey.us/wp-includes/js/dist/components.min.js?ver=df4b16e21104c0e1043e9c0a0eeedd94:7
P ​https://jeffbailey.us/wp-includes/js/dist/components.min.js?ver=df4b16e21104c0e1043e9c0a0eeedd94:7
ki ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:176
ji ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:13
mi ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:13
lf ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:13
wi ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:187
Kd ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:32
pc ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:32
Wf ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:34
<anonymous> ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:236
uf ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:15
Qd ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:42
sc ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:41
unstable_runWithPriority ​https://jeffbailey.us/wp-includes/js/dist/vendor/react.min.js?ver=16.13.1:25
Da ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:60
<anonymous> ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:236
Ei ​https://jeffbailey.us/wp-includes/js/dist/vendor/react-dom.min.js?ver=16.13.1:41

block-serialization-default-parser.min.js:2:3649

[desrosj]

#52033 was marked as a duplicate.

[alltha8matters]

Same problem I am also facing after 5.6 update.

I have a reusable blocks. After adding them into the post I cannot convert them to regular blocks. The new convert to regular block button is not working.

[ryokuhi]

Hello @jeffabailey, welcome on Trac and thanks for reporting this issue!
It was discussed today during the weekly accessibility team's bug scrub.
We are removing the accessibility focus, as this doesn't seem to be an accessibility issue.
Feel free to add the label again if you think that our team can help in solving the issue!

[alltha8matters]

Please update on resolving the issue

[lukecarbis]

@jeffabailey Thanks for reporting the problem! I tried replicating the problem, but the "Convert to regular blocks" button worked fine for me. Does the issue still happen with all plugins disabled and a default theme (Twenty Twenty-One) activated?

If so, could you share the reusable block that is causing the problem?

[jeffabailey]

Hello, I switched the theme to Twenty Twenty-One and tried to convert the reusable block, and the same error occurred.

I saved a new reusable block with just a paragraph, and that worked fine.

I then removed the Ultimate Blocks -> Table of Contents block from my reusable block and saved it. I was then able to use the reusable block without issue.

It appears that the issue has been isolated to the Ultimate Blocks -> Table of Contents block.

[jeffabailey]

​https://ultimateblocks.com/

[hellofromTonya]

Hello @jeffabailey,

As you note, the issue is:

isolated to the Ultimate Blocks -> Table of Contents block.

I'd suggest contacting the ​plugins' Support forum to report the issue with the plugin's block.

I'm going to close this ticket as the issue is isolated to a plugin rather than Core. However, after contacting the plugin's support, if the issue appears to be due to Core, please reopen.

[alltha8matters]

Hello,

Its not just related to a specific plugin.
I am using generate blocks and created a reusable blocks through it.

Now if I add that reusable block inside post and clicked on convert to regular block, the block does not get converted to regular.. It stays in reusable condition.

[alltha8matters]

Looks like the issue may not be for new WordPress installers. but since we have updated WordPress from the previous version, few of the users are facing this converting to regular blocks issue

[alexius08]

Hi @alltha8matters! I'm from the Ultimate Blocks dev team. In our case, the block in question isn't designed to be used as a reusable block. Have you checked it yourself or asked the Generate Blocks dev team if the block you're trying to use doesn't depend on inputs beyond the block's control (e.g. in our case, existing Heading blocks within the page)?

[jeffabailey]

Interesting.

It was working fine before the latest version of WordPress.

I understand why it wouldn't work, though. It appears we need WordPress block "templates" rather than reusable blocks, though I could be missing a plugin/feature to handle this.

[rgires]

Hi @jeffabailey, @alexius08

I am on the versions

• wordpress 5.6
• ultimate-addons-for-gutenberg.1.20.1.zip
• firefox 84.0.2 (64 bits)

and it always has this javascript error when converting a reusable block into a regular block

if I delete the 'Advanced Table' block, it works
there was no problem in the previous version of WP 5.5.xxx

error JS

---

Uncaught (in promise) TypeError: e.substr is not a function

b /wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
p /wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
s /wp-includes/js/dist/block-serialization-default-parser.min.js?ver=1768ef183a4597932a52df4c355129c1:2
Yr /wp-includes/js/dist/blocks.min.js?ver=65abb57f00d1d2ab3d3b16331cbbf560:3
CONVERT_BLOCK_TO_STATIC /wp-includes/js/dist/reusable-blocks.min.js?ver=d969baba471ea99a0d94fb9fd94d284c:2
e Redux

---

Do you have a solution?
best regard
romain

[alexius08]

Hi @rgires! Further investigation has reveled that ​changes introduced in WordPress 5.6 caused several third-party blocks, including our own, to break. We'll be releasing a fix for this issue in the next version of our plugin.

Meanwhile, ​the developers of Ultimate Addons for Gutenberg have a temporary workaround for blocks from their plugin that are affected by this issue while they're working on a fix.

[talldanwp]

This was reported in the Gutenberg repo where it's being tracked, so closing this trac ticket:
​https://github.com/WordPress/gutenberg/issues/26421

Block editor related issues should ideally be created there instead of in trac, but thanks for flagging the bug.

[rgires]

HI
I found another plugin that works very well
it makes the same kind of HTML table in color and converts correctly
getwid - ​https://wordpress.org/plugins/getwid/
best regard

[jeffabailey]

Replying to rgires:

HI
I found another plugin that works very well
it makes the same kind of HTML table in color and converts correctly
getwid - ​https://wordpress.org/plugins/getwid/
best regard

👍, Thanks for trying but I still can't convert my block when using the getwid table of contents block.