@Ootje98 & @Tekalight
First of all, Tekalight - thank you for commenting on multiple posts on here, helping to answer and explain other user's questions. Looks like you know your production stuff for sure!!
Secondly, apologies for the delay in responding, but it seems like you have sorted out your issue already.
But just to add my bit of input...
I have added Low Pass and High Pass filters on the: kick & bass bus, HP on the kick, LP & HP on the bass, LP & resonance automation on the Perc Bus... And then multiple LP & HP on the rest of the elements.
The low pass will remove frequencies starting from the high end down to the low - vice versa, the high pass will remove frequencies starting from the low end up to the high.
I used both these filters throughout the project to control either the low or high in certain areas. For example, building up to a main transition I wanted to take the low end out of the kick/bass/sub. So I automated the 'cut off' on the high pass filter. Therefore, as the cut off moves upwards it 'cuts off' the low end.
Vice versa - I wanted to reduce the amount of high end you hear in the Percussion. So I used the 'low pass filter', and brought down the 'cut off'. Therefore, as the cut off moves down it 'cuts off' the high end of the perc.
Hope that helps!