# Changes to Settings in NLP not appearing on image in LrC

**URL:** <https://forums.negativelabpro.com/t/changes-to-settings-in-nlp-not-appearing-on-image-in-lrc/10379>\
**Category:** Image Editing Help\
**Created:** [September 6, 2026, 1:05pm UTC](https://forums.negativelabpro.com/t/changes-to-settings-in-nlp-not-appearing-on-image-in-lrc/10379 "2026-09-06T13:05:07Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![BeardyLong](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@BeardyLong](https://forums.negativelabpro.com/u/BeardyLong)\
**Post date:** [September 6, 2026, 1:05pm UTC](https://forums.negativelabpro.com/t/changes-to-settings-in-nlp-not-appearing-on-image-in-lrc/10379/1 "2026-09-06T13:05:07Z")

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I’ve just got a new Mac after the last one died and have re-installed LrC and NLP - all my images seem to be where they should be … phew! However, it’s behaving strangely when I open NLP to edit an image and when I cycle through the Settings - NLP Standard B+W, Palladium, Selenium #1 etc. The main image stays the same but the smaller Navigator image changes. This is different behaviour to my old Mac … and the degree of lag isn’t always the same - sometimes one setting behind, sometimes more, and then the images are the same. The sliders, however, work, although there’s a half-second lag for the change to kick in, and the effect is not stepless. Is there some setting I need to change either in LrC or in NLP? Thanks.

NLP v 3.1

DSLR scan: Nikon D5600, Micro-Nikkor 55mm f/2.8, Valoi easy35 v2

New Mac: MacBook Pro 14" M5 Pro 24GB

This is image I was playing with - I’d set Selenium #1, for example, and the screen would still show NLP Standard B+W …

 ![AL459 135 FP4+ 125 F3-002-facebook](https://canada1.discourse-cdn.com/flex029/uploads/negativelabpro/original/2X/3/3853b5c8d8f2d5aa2ac87115ccf0664bd4a0998f.jpeg)

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**Author:** ![Mark\_Segal](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.negativelabpro.com/mark_segal/32/2547_2.png) [@Mark\_Segal](https://forums.negativelabpro.com/u/Mark_Segal)\
**Post date:** [September 7, 2026, 6:02pm UTC](https://forums.negativelabpro.com/t/changes-to-settings-in-nlp-not-appearing-on-image-in-lrc/10379/2 "2026-09-07T18:02:03Z")

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This may be a hardware-related issue. Especially as you have changed computers. If you migrated from an older Intel Mac to a newer Silicon Mac (one of “M” series), the behaviour of the graphics adapter may be the issue. Go to Lightroom Preferences, Performance Tab and make sure the Graphics Processor settings \> enable GPU processing with acceleration is enabled. The setting in this tab will most likely be the source of the problem and the solution.

Oh - and by the way - nice photo and good conversion, nice and crisp, good tonality.

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**Author:** ![BeardyLong](https://avatars.discourse-cdn.com/v4/letter/b/b5e925/32.png) [@BeardyLong](https://forums.negativelabpro.com/u/BeardyLong)\
**Post date:** [September 7, 2026, 6:55pm UTC](https://forums.negativelabpro.com/t/changes-to-settings-in-nlp-not-appearing-on-image-in-lrc/10379/3 "2026-09-07T18:55:46Z")

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Thanks, Mark. I’ll have a look at the settings as you suggest. It was behaving inconsistently which was weird. I did wonder if it was something to do with Lightroom syncing for the first time? I migrated from an M1 Pro to an M5 Pro, so from Apple silicon to Apple silicon.