Skip to main content
Participating Frequently
Jul 22, 2025 5:08 AM UTC
Question

mask subtract error - masks as add

The"subtract" option in masks, when selected, tends is initially operating as an "add".  Consequently it means needing to "convert it".  This occurs regardless of the masking type.

12 replies

Participant
Oct 14, 2026 2:46 PM UTC

I’m having the same issue for quite some time now. At this moment version 9.6, but already having the issue for a long time.

You select a mask, then you choose substract from mask but it does the same as when you click on add to mask. I believe this is a “hoover” problem, because i feel when you hoover the “substract’ (minus icon) and wait a few seconds before you click, than it doet the substract as you would want it…

Very annoying and hard to describe issue.

Translate
Claire H.
Community Manager
Community Manager
Oct 14, 2026 3:25 PM UTC

Hi ​@Maxweasel, Thanks for reaching out to the Lightroom Community Forums! We are having trouble reproducing this issue, so to better help you, we would like a few more details. Can you send your system info and a screen recording of your issue? You can find your system info by going to Help > System Info, copying and pasting it into a text file, and attaching it here. Thanks! ^CH

Translate
Participant
Oct 14, 2026 7:11 PM UTC

As requested system info and a screen recording.

You can see clearly that my first attempts to substract from mask de popup “add to mask” comes up when clicking on the minus symbol. The last time you can see mee waiting a few seconds, then a small glitch comes up and after that the minus symbol gives the “substract from mask” popup.

Hope this is clear.

Translate
Participant
Aug 14, 2025 6:32 PM UTC

I am having the same issue. When I go to subtract masking, it adds instead, then I have to "convert to subtract". 

Translate
JohanElzenga
Community Expert
Community Expert
Aug 14, 2025 8:33 PM UTC

Please record a screen video (a proper screen video, do not film your screen with a phone) and attach that to your answer. If this was a bug in Lightroom, there would be a mile long thread about it by now, because thousands of people work with masks like this every single day.

 

Translate
-- Johan W. Elzenga
JohanElzenga
Community Expert
Community Expert
Jul 22, 2025 8:39 AM UTC

Please explain in more detail, preferably with screenshots, what you mean. Masks work as expected for me. And I assume for everybody else, because this is the first time I read about this alleged problem.

 

Translate
-- Johan W. Elzenga
Claire H.
Community Manager
Community Manager
Aug 4, 2025 9:46 PM UTC

Hi @ben21848873799o, I'm just checking in to see if you are still running into this issue? Let us know how things are going. Happy to keep troubleshooting with you if needed. Thanks! ^CH

Translate
Participating Frequently
Mar 8, 2026 4:16 AM UTC

This is an ever continuing issue.  I do not have a way to provide you  with screenshots which show this issue.  I simply click on the subtract option.  but instead of subrtracting the masks treats it as an addition.  After which I need to convert it to subtract.

 

Translate