As we added various fixes in Tree View or in constraints to make possible simple, yet effective constraints to setup, some things may not work as expected as they are new and practically untested. For this reason, this week we try to fix this found problems. Also, for this reason the nightly build will not be updated at least till tomorrow, as this stage may have some crashes.
Just as of today the concentric circle and sphere made NaroCAD to crash (right now is fixed). Also one fix was needed to add some small functionality (Torus should be editable in property grid) but expect that from nightly build quality will increase a bit in the following bug fixing days.
Just if you will want to play with code, you will need to get the devel branch and compile by hand for now.