Inconsistent dirt on cars

Has anybody noticed while playing a replay car has some dirt accumulated over the race and suddenly it looses it all an is clean again? Is this a bug?

 

I noticed it to, its the same on PC2

 

There's only a few cars that have the correct dirt maps enabled. The Stock Car 2020, DTM and Ginetta for example.

 

While I appreciate the dirt buildup as a feature, it seems overdone and inconsistent with what happens on track. I was in a Lancer race and had no off-tracks besides cutting a chicane once (staying on tarmac run-off at all times), but by the end the car looked like it had been sitting in the backyard exposed to elements for a year.

 

I have also noticed the buildup tends to look the same on a lot of cars too. Would be nice if there was some more variety and for it to be dynamic

 

This has been reported about 134 times in the past 5 months

It's all still WIP, as announced by the devs. Other issues are being worked on beforehand.