Shadows disappearing

Hi. I’m working on an ArchViz project and I’m having some trouble with the shadows. When I get close to the shadows casted by a foliage tree, part of the shadow just disappears as I pass nearby. It is really weird. This happens in editor and play mode. I tried making a movie with matinee and the problem didn’t go away either. I have one directional light set to movable. I also tried playing with every setting in the cascading shadow maps section and no luck.

Here’s a video that shows the problem:

Video

If someone could shed some light on this or point me on the right direction to solve it, I’d be really grateful. Thank you!!