I would greatly appreciate a fix! Trying to do any detail or lettering with a brush is difficult because of this - it is happening on neatly every loop or tight curve in my work.

Yes, please work on this! I'm not able to ink in Illustrator because of the issue and I have to resort to other software. (This, and not being able to easily rotate the canvas for freehand strokes... but the blob brush thing is a more pressing matter).

I have this same issue. Inking curves with the blob brush is a nightmare. I never know what shape I'm going to get until after I've let go of the stylus. It's usually on the inside of the curve I end up with a jagged shape or it doesn't make a curve at all and just a straight line between two points.

Atoush, is there any update on this issue? There doesn't seem to be any change in the latest update of illustrator...

Struggling with this problem right now - getting these awful ugly blobs where there should be nice tight curves.

Just a +1 for this. I was working on line work for an A4 colouring sheet this week, drawn freehand. Many lines took several attempts to get clean. They look spot on whilst drawing, then glitch on release. Experimented with various smoothing settings to no avail.

I am so glad to see these comments. It's been years of frustration. I love Illustrator but this is the basis of the work I do. Generally for print, generally small enough to fit on 11x14 or smaller, full of vector lines & curves. This "glitch" has cost me countless days of tidying & ultimately, I have to settle for a stroke that is less than I intended. Not as natural & not as authentic as I can achieve on paper- that is the ultimate goal. Capture the life in the drawing, no matter what tool is used. Thank you for correcting this. I'm sure a solution exists.

It is VERY VERY frustrating. The purpose of vectors is to get the resolution and flexibility at any size--this totally defeats the purpose of using vectors in the first place. I am a surface pattern designer, and I generally import sketches to trace. The blips and blobs created by both the blob brush and the brush tool are maddening. I have had this issue since first getting Illustrator 5, and it has continued through CC. For the price of this program, and having it as the industrty standard, this is something that absolutely needs to be addressed.

While we wait for a fix, here’s 1 workaround: Create a brush that’s .5 and then stroke it larger until it’s the same thickness as the brush you want to use. Works pretty well (but not always).

Source: https://graphicdesign.stackexchange.com/questions/35495/why-do-paintbrush-loops-get-thicker-at-the-top-in-illustrator/41082#41082

Hi Ashutosh - do you have an estimate (in number of years, obviously) on how long it will take to fix this?

I have been experiencing this for years in many AI versions using a Wacom tablet/pen. I like to sign my drawings & almost all tight or thin stroked curves "fill in". I have been working around it by using the scissors tool to randomly cut the stroke in as many places as necessary to get the fills to disappear. Obviously, this is not a convenient solution. I want my strokes to flow as naturally as possible without having my tool dictate what I can achieve. Hoping a solution is near. Thank you.

Would also like to see this improved. Wasting a lot of time cleaning up lines when expanding strokes.

We really need it.

Also a problem when scaling from a large shape with wide angle curves to a smaller size.

Once scaled, curves with clean lines are now filled in with these anomalous shapes due to the scaled curves being at a tighter angle.

I have the exact same issue. Genuinely considering moving away from Adobe because of it. Edfredned's tweet shows the issue perfectly - it's *extremely* frustrating so very pleased to see this issue is under review.

I'm using calligraphy brushes and curvature tool and it's filling in between the curved segments.

Very frustrating issue! Edfredned and Argun illustrate the problem quite perfect!

https://twitter.com/ArgunErtekin/status/1044521357818679296

I'm excited to see that this issue is under review. Here's a tweet that shows my workflow: https://twitter.com/edfredned/status/1089536540110479362

Everyone else having this issue- please post links so Adobe can see.

In my illustration workflow this is a big issue. Makes illustrating fine details (e.g. hands, ears) very frustrating at times. For me this comes up often when using thin calligraphic brushes.