Kenyan Sand Boa displaying strange behavior (video in post)

[Spoons]

So I've had my little baby sand boa about two weeks. Captive bred. Old owner estimates 7 months. I have no idea how accurate - she is 9 inches long and 10 grams. Hasn't eaten for me yet but I hear she usually is a champ. She is on crushed walnut, UTH with thermostat keeping her hot half 90-93 degrees. CHE keeping the tank an ambient 75ish (I know this could be warmer, I'm working on it). Ambient humitidy 30-50. She is a very chill little snake. Has a water dish, half log hide (sand is thinner under it so the UTH can heat it better), and some plant decor, and a fake skull decor.

Sand boas are nocturnal, and from what I understand spend a lot of time under the sand. Which she does, she enjoys digging in her walnut sand. But she spends a ton of time above sand. Half the day I see her up and about. But the whole time she is above sand, she is pacing the glass, butting her nose against it. Trying to dig through it. It seems like a fixation, like she is baffled by this invisible clear barrier. She spends ALL of her time above sand doing this, never kist cruising around or exploring. Always pacing back and forth along the glass, occasionally stopping to run her nose back and forth poking at it, poking at the sand line, digging some sand away from the glass to butt at it. Here is a video of it, she's just sitting there running her nose along the glass, seeming like she's trying to find a way through, or she's just confused by it.

Is this ok? Think she will chill out? I don't want her overly stressed out by the fact that she is in a tank. It seems odd, I've never seen it before. I am just perplexed that a nocturnal snake with a reputation for "you'll never see them above sand" is spending half of the daylight hours pacing like a tiger in a cage. My fiance thought it was a thing with her reflection (you'll see you can see her reflection in the video) but even when I've wiped the glass down to minimize this, or the light is such that she really doesn't have a reflection she will do this. Maybe it's normal. I have no idea, I've never seen it!

Here is the video. Any ideas? Sorry it's a little grainy, I zoomed way in so she wouldn't see me get close and stop.