Could this be a fungal infection?

[ariveros1]

Hey guys. I have this mini orchid right here that I have had for maybe 5 months. At the time I was a complete noob with orchids, and I overwatered and rotted my roots. As I learned more about orchids, I learned to repot with some good medium and sanitize which I did. I also cut the stems and used cinammon to protect from fungus. I had some great root growth and grew out a whole new leaf as well so I was pretty excited that I saved my first orchid!

This past month or so though, I have had zero growth on it. The leaves are still in great shape, nice thick and healthy, and roots look great. but I am worried about this lack of growth being caused by these pictures attached. These dark dead spots are around where I cut the stem. Does this look like an infection to you? If so, how should I go about saving it? Also FYI, the roots look a little dark in these pictures but inside the medium since I have a clear pot the roots look great.