I use this mod for the "customizable third person perspectives" but when I go into those modes, the crosshair disappears completely

I do have the 'Show crosshair in third person view' set to 'Yes' , and it works in normal third person view, but not with the Camera Utils perspectives. Is it possible to add compatibility?

Link to the mod: https://modrepo.de/minecraft/camerautils/overview

I looked into this a bit, and any solution from my side would be at best a very ugly hack. This is something that would be much easier with a config option in Camera Utils, but sadly it seems like its author does not want to do it:
henkelmax/camera-utils#10