unfortunately I got following error message when adding THIS bundle to Krita (v3.0 final build!) and every next start of the program:

Following resources have incorrect MD5 cheksum. They might be broken, e.g. when downloading.
1.Basic: flat-diagonal
1.Basic: ink
1.Basic: round-hard 2
1.Basic: sketch
2.Bristles: canvas-brush
2.Bristles: hairy
2.Bristles: multistroke-texture
2.Bristles: multistroke2
2.Bristles: rake-random
2.Bristles: rough1
2.Bristles: rough2
2.Bristles: sharp
2.Bristles: smooth1
2.Bristles: smooth2
2.Bristles: smooth3
3.Blocks: basic
3.Blocks: bristle
3.Blocks: canvas1
3.Blocks: canvas2
3.Blocks: gradient
3.Blocks: hairy
3.Blocks: rake
3.Blocks: smooth
3.Blocks: stripes
3.Blocks: texture1
3.Blocks: texture2
3.Blocks: texture3
4.Environment: paint1
4.Environment: paint2
4.Environment: rough1
4.Environment: rough2
4.Environment: splatter1
4.Environment: splatter3
5.Guides: depth
5.Guides: grid
5.Guides: horizontal lines
5.Guides: vanishing point
5.Guides: vertical lines

Reproducible: Always

Steps to Reproduce:
1. Just try to load this bundle from author's (original) link:
https://drive.google.com/open?id=0B88t6E1U56dKSUJxUXFmZkJEcGM
 ... into final version of Krita v3.03.

Actual Results:  
disturbing message about MD5 error

Expected Results:  
1. Peace of mind
2. Faster start of working in Krita (that MD5 and loding brushes slows the program at beginning)

 Pyteo (the author) wrote me about this:

"This is something related with the new version of Krita. It happened before in one of the 2.9 releases and then the developers fixed it, but unfortunately it's happening again in 3.0.
We can only hope that they patch it again because the only way for me to fix the brush pack would be to make it from scratch :/"

- so you know what to do from before, right?