So...What setting is it?

[lustatifer 0]

Well so i bought a new pc and lended my old pc to a friend of mine. Installed Ultimaker 3.5.1 and since then my prints have been coming out like this.

I have been messing around in the settings, but doesnt matter what i do always get the same results. 

 

[gr5 2,167]

I don't think it's your PC.  Wow that looks strange.  Is this PLA?  I have seen thousands of pictures of 3d printing problems and this one is unique for me (little holes like this).

 

I don't see the layer below.  Do you?  Make sure you have 4 to 8 top layers.  What is your layer height?

[lustatifer 0]

 

This is what i always printed with and they always came out fine. 
And i dont think it is the pc itself! On the old pc i had cura 3.4.1 and it worked perfectly! 
My friend just now sended me a print file sliced on my old pc and cura 3.4.1 and the surface came out smooth and i also copied all the settings. 

[DidierKlein 729]

infill too low maybe? Strange pattern indeed

[lustatifer 0]

i get it even at 100% infill
And i tried to install and download cura 3.4.1 on this pc and run a print with it.... it also came out shitty

[lustatifer 0]

Well seems like i found it. I needed to change the pla settings itself. Seems like i always printed on Fiberlogy HD PLA settings and that fixed everything for me.