Hi,

I am having an issue where there's a lot of flicker in the timelapse:

https://i.ibb.co/3sY1zw0/Capture2.jpg

The timelapse has the same setting from beginning to end.

The issue might be due to me using highlights/shadows and dehaze, but the image looks so much better with this settings than with just curves. Isn't there a way around this?

Thank you for your help.

That indeed looks strange. I assume you watched my expert tips tutorial #5 already? There I explain some methods for debugging such issues, if you didn't, check it out: https://lrtimelapse.com/tutorial/expert
Especially such very dark scenes where you push the sensor a lot don't go well with certain Lightroom tools.