(Posted comment as answer since it solves the original issue)
If you want to see your local history, that is the things you have changed since the last commit, you can use the 'changes' tab at the bottom of the modeler, instead of the history dialog. If you have no such tab and you are working in a Team server project, use View > Changes
I'm fairly sure this is the teamserver history and not local history. Have you tried committing something and seeing if it shows?