Ghost Invisible (Only able to see shadow if anything at all) and Ghostbox not working

[『Blank』]

Not sure what causes this but the ghost is sometimes either only a shadow on the ground or completly invisible (not camouflaged /see through/crawling on the ground) but simply not there. The Ghostbox also sometimes doesnt work not even the x is able to be seen not sure if its only a visual glitch.

[Kelrycor]

For the spirit box, make sure to click on the Phasmo task icon when you tabbed out of the game, else it will b e temporarily broken and you see no back X flashing.

Normally ghosts can manifest as shades or completely. But I also had it once in the campside that the ghost was fully not visible. Nothing at all. Only sound, heartbeat and footsteps warned me.

Some other person reported ths as well. For me it happened in Nightmare mode, so my first guess was it is a feature. But as all others ghosts work fine in Nightmare since then, it seems more likely to be a bug. A really dangerous one indeed.