Please help us help you and fill where relevant:
Your LimeSurvey version: 6.14
Own server or LimeSurvey hosting: own
Survey theme/template: fruity_twentythree
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I am migrating to version 6.x, and the jQuery Mask plugin is not working in this new version.
I added the jquery.mask.js file inside the folder upload/themes/survey/Fruity_TwentyThree_Theme/scripts, and added <add>scripts/jquery.mask.js</add> in the <js> section of the config.xml file. Even so, it doesn't load.

Any tips?

Hi,
which "mask" are you talking about.

In my opinion the input mask of Igor Escobar.
Or Robin Herbots; or a different one?

I do not see any issue with "Igor Escobar"
 

Joffm

Igor Escobar...

Is the way I installed it correct?
Strange, because when I run it, it says that it can't find the .mask function.

I just added the code of "mask.js" to the "custom.js"

Joffm

It worked here. I reinstalled LimeSurvey from scratch and reused only the database and the files from ./upload/surveys/*.