I found a work around:
I use the action:
SWS/S&M: Delete active take and source file (prombt, no undo)
The other actions with a 'Delete active take' part, do not work (or i did not get it)....
BUT after that the 'new' first take can also not be deleted with the original command 'delete active take'. And so on...
Just opened a Bug Report:
https://forum.cockos.com/showthread....48#post2356748
Some more investigation:
I choose
Options->Take lane behaviour->Display empty take lanes
and find a lot of empty takes.
With that option on, i could delete any take i want with 'delete active take'
After that I switch back to not display empty take lanes and start the action:
Item: Remove all empty take lanes
and now it also works with deleting the first take