Illustrator Brushes stop during brushstroke without lifting

Question

Using Illustrator 30.2.1 on Mac Studio M2 Ultra (128gb ram) OS Tahoe 26.3 using Wacom Tablet (Intuos 4 Medium PTK-640)

Newly updated - on opening a new file and selecting a Brush and drawing a continuous line it stops registering despite not lifting the pen from tablet after what feels like a fairly short time (I’ve certainly drawn much longer lines in the past have been using Adobe Illustrator as a freelancer for 20+years)

The length does change a little depending on how fast I draw / which brush I choose but not significantly. switching between ‘view using gpu’ or ‘..cpu’ makes little difference.

Any help welcome.

Thanks!

Short Screen capture and a few screengrabs of my settings attached

Arty Greg · Answer

To recap:• The issue only happens with the brush tool / blob brush tool• It makes no difference what input device I use (tablet, mouse etc)• It makes no difference what type of brush I choose (calligraphic, pattern, art etc)• It makes no difference the size of brush or colour (does the same even if I set line and fill to ‘none’)• Testing simple continuous vertical lines drawn on A4 portrait size art-board withfull art-board on screen. At comfortabledrawing speed (approx 3-5 seconds per line) I get 2-3 lengths…no matter howslow I draw (50-60sec per line) I never get less than 1 length …Drawing as fast as possible I can get 20 + (very messy) lengths! …total insane scribbles and I get much more but it’s completely useless.• The resulting lines to all of the above have very few anchor points - line fidelity settings make very little difference• It makes no difference if GPU performance is ticked or not or if real time drawing is ticked or not …or if history states are changed to few or many in performance prefs.• No difference if choosing ‘view with cpu’ or ‘gpu’…or if using preview or outline modes under view settings• I opened my tablet diagnostics panel while drawing to see if it registers any kind of interruption at the point the line stops …but no issues there• I tried having activity monitor open showing ram/cpu etc usage as I’m drawing and everything seems normal…if anything ram usage goes down a fraction as I’m drawing the lines!Very confused - feels like the pen signal is being interrupted …or there’s some kind of memory leak overload thing happening …I mean we’re not talking about a complex illustration …just 1 line which results in maybe 6-12anchor points…Interesting switching to a new administrative account made a noticeable difference despite not fixing the issue…Meanwhile any further suggestions welcome - or if anyone can replicate the issue!

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