No tool isn't throwing any errors whatsoever, but that same tv29.db if I try to load it again it is my understanding should show changes for groups, renamed channels, like it is in template correct ? But for me it just loads same unmodified tv29.db. I tried copying it regardless but it doesn't show, and of course I did turn off all those sync options with backend.
The template will not change. It will ask if you want to add new channels if you load the template and new channels have been added to the system.
Are you sure you are looking at the correct DB? It should take a couple of minutes to update everything. If you want to post your template I can take a look and make sure it is correct.