@Will

I can confirm that it's definitely working for me on 26.4.1

No, you haven't. It still doesn't work.

I created an image that uses the gaussian blur effect in a 300ppi document and had no problemas. Now copied this image and placed on a 72ppi document. When pasting I have no problems, the gaussian effect occours correctly, but when moving the image something happens to the effect and the image changes.

First a I found that when copying (hold ALT and move) the blur mantains its appearance, but that is not a solution.
Afterwards I discover that when the raster effect is at 300ppi this doesn't happen. When I change the raster effect to 300, it works fine. Don't know if I'm being stupid or if it is a problem.

Hi, This is still not working and I've updated to the latest version. Not sure why it keeps happening, it used to work fine on older versions. Thanks

@Bryan

I see, I just think it's a really bad UX having to deal with two different dialogs to add a simple blur, the ideal would be add the extra settings to the Gaussian Blur dialog, so you can adjust everything on the fly.

@Danilo Oliveira
"I believe that the resizing is fixed but now high blur values cause the blur to look boxed in the edges, look the attached video."

For High blur values, you'll need to adjust Effects > Document Raster Effects Settings

Hi Ankit

I believe that the resizing is fixed but now high blur values cause the blur to look boxed in the edges, look the attached video.

Did this get fixed. I'm still having this problem after 2 years!

INTERIM SOLUTION:
The only way I've found to beat this very difficult limitation in AI is to (1) always scale objects that have Gaussian Blur in them NUMERICALLY (with the scale dialog), and after scaling, (2) additionally multiply the Gaussian Blur value times the former object enlargement.

EXAMPLE:

(1) You have an object that contains an element with Gaussian Blur applied.

(2) Use the SCALE DIALOG to enlarge/reduce the entire object, remembering the exact scale amount.

(3) Select ONLY the portion of the object containing the Gaussian Blur effect.

(4) MULTIPLY only the Gaussian Blur VALUE by the exact amount of the original object enlargement/reduction.

Voila. Perfect.

-- In this way, we get the job done, and "do Adobe's coding work" FOR them, one object at a time.

This bug needs to be fixed, it caused some serious problems in our workflow.

Pls fix this. my work has struck in the middle cause of this bug. i cant do the scale manually for the entire separate gaussian blurred objects cause i have so so many of them.

Why this BUG is not fixed yet? Its super annoying.

This bug really need to be fixed, it's there for years. Every time you scale a artwork that has multiple parts using the gaussian blur, you have to manually edit one by one.

How can this still be an issue after so long. This sucks!

This needs fixing!

hello friends,

as per my research on this issue, i have got TWO solution that,

1) USE UR ARTWORK TO PLACE ON NEW PAGE.
2). Use Feather effect instead of Blur Effect. (RECOMMANDED)

it can be helpful but i am not as sure as an EXPERT. so we can try middle way to get rid of this issue.

its not working properly.

This is annoying. This needs a fix.

Yes, I agree: expand effect appearance is not worth much, since this is a vector app. Not being a coder, yet fond of logic structures, I suspect there is some kind basic structural alteration needed in order to allow the scaling of effects work as stated (and needed) in regular size dialogs. From my POV, this would definitely be worth the effort!

Yes, it is not a very good workaround, once you expand the appearance, it makes the result fixed into an image.