Help with artlianis render please

All my projects lost colors, on every project done on this computer projects lost colors. They get them back only when i change vision so like when i move camera/view, when i unclick mouse button to look how they look like or to change smth colors are lost again. I did not installed anytchink it just beacme idk what could happen. When i am turning around my project colors are but when i leave it to change clouds etc. my building is totally black and loose all colors same with grasss they are black, only background is normal…
Hope for response, bye.

Hello and Welcome to Artlantis forum !

Did you activate an heliodon in your view ?

Which version of Artlantis are you using ?
On which platform and which OS version ?