The following instructions also work for other Macros like PTC Template Page macro and STC Tag Description Macro
This is a problem in relation to the Collaborative editing feature
No Template Macro on the template page
Step 1: Revert draft
Open the page in Edit mode and select Revert to last published version on the bottom right.
Step 2: Check for changes
In the opened dialog click on “show changes”. There should be some changes regarding the PTC Template Macro.
Changes can be displayed very different when for example something is changed in a table.
Step 3 Click “Revert page”
After inspecting the changes and writing down important changes click on “revert page”.
Important changes can be applied afterward again
Now there should be the PTC Template Macro on the page