Glitchy shadows using the "Light" behavior

When using the “Light” and “Light Obstacle” behaviors, some of the shadows in my game seem to flicker? It seems like this is an engine problem, because I don’t see how any other behaviors attached to the light obstacles or light could create this.

Also, I am using GDevelop version 5.2.169.
(And before you ask, I do intend for the shadows to be 100% black, it’s just a mechanic in my game.)