[Version 4 and higher] Decals don't show up on objects unless raytracing is activated

I am currently on 4.1.6, whenever I place a decal on my object it is not visible unless I tick Raytracing which affects the overall performance. I went back to Dimension 2.3.1 and I can add decals freely and have them show up instantly but that version crashes quite often nowadays. I use the same objects in both versions so I am not sure what is causing the discrepancy. Any help appreciated