same

Opacity masks are not applied as soon as they should be. You have to toggle a checkbox on and off again before it is applied.

Steps to reproduce:

1. Create a shape to be masked
2. Select the shape and click "Make Mask" in the Transparency panel.
3. Click on the opacity mask thumbnail.
4. Optional: Click the "Clip" checkbox so you can see what you're doing.
5. Paste in or draw a masking shape that overlaps the original shape.

Expected results: The mask should be applied instantly.
Actual results: The mask is not applied. You have to toggle a checkbox on and off, such as the "Clip" checkbox or the "Invert Mask" checkbox, before the mask is finally applied.

Here is a video of the bug: https://youtu.be/6wis7hVdLow

I am using macOS 10.14.6.

私も同じです。

Illustrator 25.1-Windows 10
同じ症状で自分が何を間違えているのかが分からず、数日間、色々試したりグーグル検索しても、
解決できずフラストレーションをかかえていました。早く告知してもらいたいと思います。

Same problem. Illustrator 25.1 (64-bit) on Windows 10

Relinking an Image placed under an opacity mask in Transparency Window
does not change the image automatically, The document has to be saved
and reopened to show the image.

Also the image just shows after ticking "Clip" in the Transparency Window.

Please see screenshot for more.​

​ADB-17643567-Z2C6

I am having the same issue version 2021 does not preview the transparency mask when editing,

The opacity mask is not working properly. The adjustments are only visible after you switch 'clip' or 'invert' on or off.

Any word on a fix or an update yet Adobe?

When I create a gradient mask, and then edit the gradient, the gradient doesn't change on the artwork. I have to either make the change and then hide and then show the layer to see the changes, or if I click invert mask and then click it again back to the mask I want the changes appear. The gradient used to show live changes.

Same with me on Illustrator 25.1 - Mac 10.15.6

Same with me on Illustrator 25.1 - MacOS Big usr 11.1

Same with me on Illustrator 25.1 - Windows 10

I hope this can be fixed quickly, have been using the blending modes instead, not the same...PLEASE FIX!!! Thanks

This started happening to me yesterday and still on mojave 10.14.6

Yes, I reported this issue to Adobe's team! Please fix as soon as possible, we need you Adobe Illustrator! Thank you for hearing us out too.

As of version 25.1, opacity masking doesn't update in real time even with the associated setting selected. It's very easy to replicate (mask any object with one). It worked as of 25.0.1, and now does not. I was really looking forward to the features introduced in 25.1, but opacity masking is central to the work I do, so back to 25.0.1, I go. I really hope this gets addressed soon!

Yes I just ran into the same problem. Have never seen this before. Effects will not update so it is limiting what I can do, including moving the object or adjusting a gradient within the opacity mask. Appreciate your efforts to fix as this is an important tool!

Same with me on a Mac BigSur 11.1

Yep, reported this exact problem the other day and it seems to be fairly universal. Sort it out please chop chop Adobe! x