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Adam Clay

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  1. GPU Preview glitches with clipping masks and transparency (since Illustrator 29.6.0), white rectangle appears below

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    32 comments  ·  Illustrator (Desktop) Bugs » Rendering Issues (GPU, CPU)  ·  Admin →
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    Adam Clay commented  · 

    I am also experiencing this problem. Any items inside a clipping mask with reduced opacity do not display properly in front of other objects. 'View using CPU' is not a fix for me as 'View using CPU' seems to be broken.

    This is causing a lot of problems with my work flow. Does anyone know if this is being fixed soon?

    Retina 5K, 27-inch, 2019 / OS 14.4.1 / Illustrator version 29.8.1

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    Adam Clay commented  · 

    Update: I previously said that this only appears in previously created files. Actually I've found that it also appears in new files. The problem is related to transparency of the object contained inside the clipping mask. It does seem like my issue is probably the same one referred to here:

    UserVoice: https://adobe.ly/4mbUVBQ
    Post: https://adobe.ly/3VJUwM1

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    Adam Clay commented  · 

    Retina 5K, 27-inch, 2019 / OS 14.4.1 / Illustrator version 29.8.1

    This looks like a new visual bug. There seems to be a problem with the way Illustrator is displaying clipping masks. It has only started happening recently.

    The attached image is taken from a file that worked fine before.

    The wavy lines are contained inside a clipping mask (the same shape as the blue section). I have included images of the lines outside of the clipping mask (above) and inside the clipping mask (below).

    Any separate objects placed behind this clipping mask have a section missing (see black shape behind). The clipping mask and the black shape are completely separate. The black shape is just a rectangle.

    This only happens with clipping masks that had been created in the past. Any newly created clipping masks do not have the same problem. However this is quite a big problem for us as we have hundreds of files, each with multiple clipping masks. It won't be possible to recreate them all.

    This is only a display issue. Any exported images don't have the missing sections.

    Note: this only happens when in View using GPU mode. When I switch to View using CPU the image displays correctly.

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