Is there a Unity Select Texture browser count hard limit?

I recently noticed that some of my textures were missing from the unity Select Texture function in shaders, and I can only get the textures to appear if I move them into folders that's higher up in the project directory listings. Via some testing, I can even see exactly at which point in a texture folder that the textures no longer start showing up since the file count hit this hard limit. Is there any way to remove this hard limit? The only way for the textures to show up is if they are specifically searched for, which is highly inconvenient. And even then, it only shows up as a tiny thumbnail list instead of as full thumbnails.

Unity 2020.3.4 URP

Thank you.