Backslash symbol is escaping in the custom fields

Hello,
I am using Generatepress with Mathjax and Pods.

Backslash symbol is escaping in the custom fields.

the code to write a simple equation is

[latex]\frac { { 2 }^{ 3 } }{ \sqrt { 2 } } [/latex]

I am unable to enter backslash symbol”\” in the custom field created by PODS.

After saving the post, backslash is automatically deleted. I am unable to understand where to take this issue.

Is it a problem with WordPress, Generatepress or PODs.

The page I need help with: [log in to see the link]