The heating lamp is a common red flag as well. No scorpion needs a heating lamp, aside from maybe some arid species. This is NOT an arid species. Also, it looks like a heavy duty reptile heating bulb. Maybe the scorpion is trying to escape a hostile habitat??
Also the lamp is only 50watts as it is chilly in my basement. Temp is 77 degrees with 70% humidity
i think you should consider using a side heat mat or one of the ceramic heat emitters that are like 25w because the red bulb could be throwing off it’s day/night cycle thus leading to disorientation and abnormal behavior patterns such as what you’ve described with hanging on the lid - the red bulb is actually perceivable to snakes, arachnids, etc contrary to how they’re marketed
I have many photos of my three H. silenus climbing the silicone in the corners of their enclosure. They've made it all the way to the lid many times. I have the mesh shielded by acrylic on the underside except for a small gap in the centre where they're not long enough to reach.
Is it a wire mesh lid? If so, cover it or replace it ASAP. Scorpions are surprisingly good at climbing, and a wire mesh lid is asking for trouble. Just because it hasn’t gotten stuck yet doesn’t mean it won’t next time or the time after that. In general you either need to make sure that it cannot climb to the ceiling or that if it does so it cannot hurt itself. That means no wire mesh, a short fall height, and nothing hard or jagged to fall on.
Depending on the dimensions of your screen, you might be able to find sheets of LEXAN that fit at your local hardware store or on Amazon. The store can usually cut it to size for you. Then you can drill holes and replace the screen or mount it directly under the mesh with an adhesive.
I didn’t think scorpions could climb glass , is there something it’s climbing onto ? Like a big decoration..