Enzyme Internal Error: unknown node with tag x

[Anupheaus]

As per the comment here (#1875 (comment)) I'm still getting the issue with the latest version of enzyme, react adapter and the exact same minor versions of react, react-dom and react-test-renderer.

Current behavior

Tests where components are created using memo fail with the error given in the title (where x is a number).

Expected behavior

Tests should not fail with this error.

Your environment

Windows 10
VS-Code v1.42.1

API

• shallow
• mount
• render

Version

library	version
enzyme	3.11.0
react	16.13.0
react-dom	16.13.0
react-test-renderer	16.13.0
adapter (below)	1.7.2

Adapter

• enzyme-adapter-react-16
• enzyme-adapter-react-16.3
• enzyme-adapter-react-16.2
• enzyme-adapter-react-16.1
• enzyme-adapter-react-15
• enzyme-adapter-react-15.4
• enzyme-adapter-react-14
• enzyme-adapter-react-13
• enzyme-adapter-react-helper
• others ( )

[ljharb]

Which exact number is "x" here? Do you have example code that produces this error?