Thank you for hints @michael.bertsch and @kovarj .
Here are results after your hints:
- it helps to create a new uad file (all variables are available there and I can enable them)
- my tasks are part of Sotware and attached to Task-Class
- I again open all our 3 uad files in AS4.12 and made “small change” > save > change back > save
- I used these uad files (<?AutomationStudio FileVersion="4.9"?> , ) before opening project in AS6.5, but I got “version 9“ error (see attached picture)
Myabe I forgot something…? If there is not better hint in following days then I will do “manual work“ and I will enable tags in new uad files
