Visual Previews and Visual Lum values: every 5-10 pictures, there is one picture that is wildly off compared to Lightroom Develop Module visuals.

LRTimelapse 6.0.6 (2022-06-07)
DNGConverter_14_3
16-inch MacBook Pro M1 Max, 64GB RAM

Sony a7R IV
Canon 8-15mm lens @ 8mm (with metabones adapter)
Manual exposure, lens wide open

Steps to reproduce:

- Open LRTimelapse and point to folder of raw files
- Set 5 keyframes
- Open in Lightroom
- Edit 1 of the keyframes, including LRT Mask 6
- Move and resize LRT Mask 6
- Copy all Develop settings, including all masks
- Paste all Develop settings to all other keyframes, using "Merge" Masks (also tried "Replace" Masks)
- Reload metadata in LRTimelapse
- Auto Transition
- Create Visual Previews
- See spikes
- Lightroom: Read Metadata and replace
- Compare spikes with Lightroom previews, and see that they are off

At this point, Visual Previews are show really inconsistent Visual Lum values. When I compare the Visual Preview to the Lightroom Develop module preview, they are wildly off, but only the bad previews and Lum values are spaced out--every 5-10 images in the sequence.

Attached are 2 sets of 2 images. One shows a matching preview with Lightroom, and one shows a pair of images that are wildly off. If the images are too small in this interface, they (and the LRTimelapse log) can be downloaded here: https://www.dropbox.com/sh/9sccbvn1sqm6l...zPE6a?dl=0

Why don't you use the LRTimelapse Sync script. That's the recommended way. Otherwise you will overwrite the internal masks that LRTimelapse uses and get strange and unexpected effects.
Please try the workflow again using the sync script as explained in all my workflows and tutorials.
See faq also: https://forum.lrtimelapse.com/Thread-how...ync-script

Another reason that I could think of in your case is too strong editing in Lightroom, see the expert tips video #5 to understand why Lightroom can introduce weird effects in certain cases: https://lrtimelapse.com/tutorial/expert

Thank you--that is very helpful!