Error in JS

On, when i resize the screen triggering the posts animation, the posts behave strangely (see screenshot) and i get the following errors:

On [Error] TypeError: undefined is not an object (evaluating ‘s.easing[this.easing].length’)
(anonieme functie) (jquery-migrate.min.js:2:6779)
u (jquery.min.js:2:59569)
(anonieme functie) (jquery.min.js:2:64609)
ot (jquery.min.js:2:58972)
[Error] TypeError: undefined is not an object (evaluating ‘s.easing[this.easing].length’)
(anonieme functie) (jquery-migrate.min.js:2:6779)
u (jquery.min.js:2:59569)
(anonieme functie) (jquery.min.js:2:64609)
ot (jquery.min.js:2:58972)

Not sure what’s happening, any help is greatly appreciated.

Hello @Stefan_van_Perlo

Thanks for writing to us.

It seems that it is an issue of cache or plugin conflict. I would suggest you troubleshoot with a few of the common issues before we investigate your settings.

  1. Testing For Theme Related Issue
  2. Testing For Plugin Conflict
  3. Theme Update
  4. Child Theme
  5. Css/Js Customization
  6. Increasing Php Memory Limit
  7. Disabling Cache
  8. Disabling Cdn
  9. Permalinks
  10. Version Compatibility

If none of those work, It would be best if you could copy your live website to your staging area. and send your details in a secure note so that we can investigate your setting without breaking your live site. Please provide the following details

  • WordPress Login URL
  • Admin level username and password
  • FTP Details

You can find the Secure Note button at the bottom of your posts


Hi! I’ve tested the (child)theme, plugins, and custom code and the problem persists

Hey Stefan,

We have investigated the issue further and we believe that this is a bug in the latest release. This has already been added to our issue tracker and will be looked into by our development team. I cannot make any promises relating to a fix at this stage. I will add a note to the tracker referencing your report though so our dev team can see there are multiple reports of the issue.

Best Regards.

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