WooCommerce 7.6 and 7.7: Save Attributes button not visible when adding 2 attributes when more than 20 global attributes exist

[mattsherman]

Prerequisites

• I have carried out troubleshooting steps and I believe I have found a bug.
• I have searched for similar bugs in both open and closed issues and cannot find a duplicate.

Describe the bug

In WooCommerce 7.6 and 7.7 (not 7.8), if there are more than 20 global attributes in the system, when 2 attributes are added to a new product, the "Save Attributes" button disappears.

1 attribute added ("Save Attribute" visible):

2 attributes added ("Save Attribute" missing):

3 attributes added ("Save Attributes" re-appears):

2 attributes (last attribute removed; "Save Attributes" stays visible):

Expected behavior

The "Save Attributes" button is visible.

Actual behavior

The "Save Attributes" button is not visible.

Note: Adding a 3rd attribute, and then removing that attribute is a workaround.

Steps to reproduce

1. Add at least 20 global attributes to the system
2. Go to Products > Add New
3. Change to Variable product type
4. Go to Attributes tab
5. Add existing attribute
6. Add another existing attribute
7. Notice that Save attributes button disappears (and empty state reappears at the top of the list)

WordPress Environment

n/a

Isolating the problem

• I have deactivated other plugins and confirmed this bug occurs when only WooCommerce plugin is active.
• This bug happens with a default WordPress theme active, or Storefront.
• I can reproduce this bug consistently using the steps above.

[mattsherman]

6279797-zen

[mattsherman]

Note: This issue does not exist in WooCommerce 7.8, as the UI was changed and the bug no longer exists there (#38126)

[mattsherman]

Closing this issue as it will be addressed in WooCommerce 7.8 (due to further UX improvements in this area that happened to also address this bug).