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P: PS 26.1 Generative Fill mask are larger than the original selection

Explorer ,
Nov 25, 2024 Nov 25, 2024

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Photoshop 26.1

Windows 19045.3324

 

Step 1: Open a test image

Step 2: Make a small selection with the polyganal lasso tool.

Step 3: Click Generative Fill, then click Generate

 

Expected result: The mask for the resulting Generative Fill layer should match the original selection

 

Actual result: The mask for the resulting Generative Fill layer expands to be larger than the original selection in an octagon shape with feathered edges.

 

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correct answers 1 Pinned Reply

Adobe Employee , Dec 10, 2024 Dec 10, 2024

Updated status to investigating.

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16 Comments
New Here ,
Nov 24, 2024 Nov 24, 2024

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For some reason, my Generative Fill has suddenly started generating outside of the marquee selection I make. It was working fine 20 minutes ago but is now behaving differently. I've tried resetting preferences and uninstalling, but it hasn't fixed the issue. Is this a bug? Is it fixable? Please help!

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Community Expert ,
Nov 24, 2024 Nov 24, 2024

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Have you perhaps set a soft/feathered edge for the lasso tool?


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Adobe Community Expert: "Gewusst wie, spart Energie." 

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New Here ,
Nov 24, 2024 Nov 24, 2024

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Not that I can see. My feather is set to 0.

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Adobe Employee ,
Nov 26, 2024 Nov 26, 2024

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Hi @Kindhearted_Gleam9686,

 

Thank you for detailing the issue! I’d like to clarify that this behavior is actually expected and not a bug. The expansion of the mask in an octagonal shape with feathered edges occurs because of how the Generative Fill feature processes selections. This has been consistent behavior across both the older and the latest versions of Photoshop with different Firefly models.

 

I hope this helps!

 

Best,

Anshul Saini

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Explorer ,
Nov 26, 2024 Nov 26, 2024

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@Anshul_Saini this is absolutely not consistent with older versions of photoshop. Reverting to 26.0 corrects the issue. I can also confirm that this was not an issue in previous versions. Clearly something has changed in the 26.1 update with regard to how generative fill manipulates initial selections.

 

After some experimentation, it appears that 26.0 generative fill slightly expands selections that are ~50 px X 50 px or larger but only by a couple pixels. Selections smaller than ~50 px X 50 px are not expanded. At ~110 px X 110 px or larger the mask edges will start to appear feathered. Selections smaller than ~110 px X 110 px will not be feathered. See examples below.

 

26.0 small selection:

26.0 small selectionexpand image

 

26.0 small selection generative fill mask26.0 small selection generative fill maskexpand image

26.0 large selection:

26.0 large selectionexpand image

 

26.0 large selection generative fill mask:26.0 large selection generative fill maskexpand image

26.1 on the other hand, expands initial selections by a lot more pixels and by X increment regardless of initial selection size, unlike 26.0. The mask edges are also feathered about twice as much and regardless of initial selection size, unlike 26.0. See examples below

 

26.1 small selection:

26.1 small selectionexpand image

 

26.1 small selection generative fill mask

OVER 15.5 TIMES LARGER:

26.1 small selection generative fill maskexpand image

26.1 large selection:

26.1 large selectionexpand image

26.1 large selection generative fill mask:

26.1 large selection generative fill maskexpand image

 

Clearly 26.1 generative fill expands the initial selection and feathers it far more than 26.0 and previous versions. And any minimum selection size threshold for preventing those adjustents has been removed. This is overstepping for any selection size but for small selections, the resulting mask is near useless since it defeats the precision of the original selection and results in unnecessary additional mask corrections. Please revert these changes to the previous iteration or add settings to allow personal refinement

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Explorer ,
Nov 27, 2024 Nov 27, 2024

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Excuse me?

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Explorer ,
Nov 27, 2024 Nov 27, 2024

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It is actually not consistent amongst differnent versions. It's new to 26.1 alone. This bug completely renders Generative Fill unusable.

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New Here ,
Nov 28, 2024 Nov 28, 2024

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same here!! I haven't seen anyone talk about it either. I've been using the Remove Tool with Gen Ai as a substitute, but hopefully there's a fix soon.

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Explorer ,
Dec 04, 2024 Dec 04, 2024

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@vuriae @Christeaa @Olaf Giermann Are you using 26.1? If so, this is likely the same issue others, including myself, are experiencing. Basically, gen fill in 26.1 expands and feathers the initial selection far more than 26.0 and previous versions did. Plus there doesn't seem to be a minimum selection size threshold, so selections will be expanded and feathered the same amount regardless of initial size. This will be less noticeable in large selections but VERY noticible in small selections (eg 10px X 10px).

 

Reverting to 26.0 "fixes" the issue. Be sure to disable auto updates for photoshop, otherwise it will just reinstall 26.1 the next chance it gets.

 

See my post for more information and some test results showing the difference in how gen fill handles initial selection manipulation in 26.0 vs 26.1. Please consider an upvote so we can bring this issue to Adobe's attention

 

Here's another post about it

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Adobe Employee ,
Dec 05, 2024 Dec 05, 2024

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Hi all,

Thanks for alerting us to this issue. I'm sorry that its affecting your productivity 😞 
I can confirm the pixel buffer spread is larger in 26.1 than 26.0
We'll let you know here when we have a solution (other than the work around to fall back to v26.0)
Thank you,
Meredith

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Community Expert ,
Dec 06, 2024 Dec 06, 2024

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quote

vuriae Christeaa Olaf Giermann Are you using 26.1?

 

I wasn't. I see the same issue now. 🤪


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Adobe Community Expert: "Gewusst wie, spart Energie." 

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Adobe Employee ,
Dec 10, 2024 Dec 10, 2024

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Updated status to investigating.

Status Investigating

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New Here ,
Dec 29, 2024 Dec 29, 2024

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It's terrible behavior. please change that ASAP. We make a selection for something and specifically there's things or edges or pixels we don't want to change. CHANGE IT!

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Explorer ,
Jan 03, 2025 Jan 03, 2025

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@MeredithStotzner I see that there's an update (26.2) but I don't see anything in the release notes about this issue. Do you know if it was addressed?

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Explorer ,
Jan 20, 2025 Jan 20, 2025

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The 26.2 update does not fix the issue. When can we expect a fix?

@Sameer K @MeredithStotzner @Olaf Giermann 

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New Here ,
Jan 29, 2025 Jan 29, 2025

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LATEST

Updated to version 26.3 and the problem still exisists.

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