I've been trying to assign a second material to the same object. After selecting the face and clicking on the assign button, it only deletes the face instead of assigning the new material. What am I not doing right?
All, after trying too many options and non worked, I had to uninstall version 2.82 which I was using and installed version 2.80, that solved the whole puzzle. I'm back on my project again. Thanks to all of you that contributed in one way or the other to help me solve this problem.