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Switching to a master app theme reset template options and grid layout

User_WWJ0QNov 24 2022

APEX Version: 20.2
After copying and subscribing to a theme all template options and grid positions are reset.
We want to achieve functionality of MASTER THEME Application will be subscribe to a lot of another applications.
So, we have created a MASTER THEME Application 100 using Universal Theme 42 with customized THEME Templates, according to Oracle Documentation (
Second step, we have created another application 200, Copied THEME from the Master Theme Application 100 and Subscribed it and then we have going to switch THEME to the copied and Subscribed Theme from appl 100.
During the switch process to the new theme, we have got a table of Verify Compatibility and seen that for each of the Template Type , value of "Old Template" was different of "To Template"'s value. (For example: Optional/Optional-Floating). In first time we have corrected the values to be correlated according to the "Old Template"'s value, In the second time we have not did it.
As a result, in both of times - we have destructed Grid Page Layout, it feels like reset and lose Master THEME Template formatting options.
Subscribing MASTER THEME Application and Switch to this THEME was reset and lose Template Options.
Can you suggest to us please, how we can save all Templates options settings and Layout settings implemented in a MOTHER THEME Application for using it in our other applications? Is this behavior of switching themes are correct?

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Added on Nov 24 2022
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