Just updated Illustrator to 29.2.1 and still having the same issue. Brushes are generating offset from the path and at the incorrect scale.

I encountered this issue as well in large format document adobe illustrator. It seems to offset more or less depending on the type of stroke I make also. Very disruptive for detailed brush work.

me too!

Still happening on large size documents in 28.6.

Still wrong on 28.2

Still happening in 28.0

Still having this error on an oversized artboard using charcoal brushes 5/26/2023

Here is my working environment.
Illustrator 27.3.1

iMac (latest OS)
3.6 GHz 10-core Intel Core i9
AMD Radeon Pro 5700 XT 16 GB
128 GB 2667 MHz DDR4

Copy and paste to normal canvas will fix the misalignment.
Copy and paste the corrected path to the larger canvas and the misalignment will be restored.

This happens with large document sizes.
Please see the screen capture video I recorded.
I hope it will be resolved.

This happens with large document sizes.

However, I can’t confirm this problem to not exist in versions prior to 2023.
26.5.2 shows the same behaviour.

Upon investigation, I see that the brush you are using is a giant path, 98.0938 inches long and 5.3154 inches tall, in the document’s units.

However, the scale option chosen for the art brush is 'Stretch to Fit Stroke Length'. So it means that Illustrator should maintain the 5.3154 height of it (that it a width or 'weight' of the stroke) across the line, which is not the case nor in 2022, neither in 2023 versions!

If we rebuild the same giant brush in an much older version, such as CS6, Illustrator maintains the original height of the artwork used — as intended.
So it’s not 2023 got broken, but 2022 before it!

This needs further investigation.
Meanwhile — what was the latest version you say you were able to use this specific 'fat brush' succefully? Are you sure in that? It can’t be 2022.

DG, thanks for the file.
I confirm this issue.

Here's a sample file demonstrating the issue @Egor

Custom art brush offsets when you select and redraw the path using brush tool. Bottom path is redrawn.

This happened to me today.

Still a issue as of today's date. 2022-04-11

It is still a issue with Brush offset from the line on a large canvas

This is still an issue.

This error has not been fixed yet.