Particles (clouds) disappearing when flying through

Hi guys,
please pardon my noobness but as a 3d modeler I’ve just recently started to dabble with particles in UE4.

I got some clouds (P_Clouds_Dense) from the Landscape Mountains scene and I’m trying to make the particles visible even when flying through them whereas now they disappear if I get somewhat close. They actually remain visible only if the camera is quite far.

I’ve played with Bounding Box but nothing seems to change.

Any kind tip?
Thanks !!

I currently dont have landscape mountains installed, but I think it might be the pixel depth node inside its shader.

Hey Luos thanks for the tip, there wasn’t a pixel depth node but definitely some parameters set up to fade out within a certain distance!