all_user_func(): Argument #1 ($callback) must be a valid callback, function "quicktabs_machine_name_exists" not found or invalid function name in call_user_func() (

I have created MR for the above issue

Please review it once.

Thank you

smustgrave → closed merge request !17

Going to need more detail. Our pipeline is green and locally works just fine.

I can reproduce the issue and confirm that the MR fixed it.

tibezh → closed merge request !39

Preapred an actual MR for 4.x

Will need a test then as I can’t replicate

Same solution we are using in QuickTabsInstanceEditForm, and the function quicktabs_machine_name_exists doesn't exist so obvious oversight along the way. Thanks for the fix @tibezh.

Thanks @smustgrave for trying to triaging this queue, and trying to reproduce the bug, also appreciated.