Yellow glow around edges - what did I do wrong?

Hi everyone!

I have this issue of a yellow glow spreading from dark parts to brighter parts of my pictures. I develop and scan the pictures myself. The pictures I shared are taken with different cameras, different lenses and different films and developers. It is not very consistent over all pictures, but appears regularly in almost every roll I develop. For this reason I think it may have to do with my developing technique or scanning setup (digital camera with extension tube and macro lens). What could I be doing wrong? Am I agitating too little or too much? Or could be something with my scanning?

Any advice is appreciated!

Thanks!