P: Point curve settings are missing when creating a preset

I just ran into the same issue. I don't have any Premium Preset masks, just plain old Light/Texture/Optics tweaks including point curve (and no parametric curve as suggested by others), and when I create a preset from an image and then try apply it to any image (including the one I just created the preset from) it applies everything except the point curve.

Older presets I created years ago have no problem applying point curves.

I reported it as a bug in Lightroom.

Your Preset contains a Point Curve but you have selected the Parametric Curve in your screenshot.  Select the Curve on the bottom of the left icon (Gray Circle)

I am wondering the exact same thing! The point curve is such an essential tool in photo editing and including it in a preset is crucial. How do you otherwise incorporate crushed blacks into a preset? I know this can be done in LrC, but I'm mostly, if not only, editing in Lr mobile. 

I've also been experiencing this issue with Lightroom 6.4 (arm64) on Mac OS Ventura 13.5.

It most notably happens when I have a preset that contains some of the Premium Preset masks like Enhance Portrait. It does not happen consistently and I have verified that when saving the preset, all of the checkboxes are checked - with the exception of Auto Settings. I typically use the point curve and not the tone curve. I haven't had this issue until recently.

I am trying to save a preset that I made that includes adjustments to both the point curve and the tone curve. Here is what it looks like:

When I save this preset and then apply it to the same picture, it looks completely different. My point curve adjustments aren't saving, only the Tone Curve:

I know it's hard to tell from a small sample of my picture, but the coloring and shadows are all off. How can I save my preset so that it copies all of my adjustments, not just the Tone Curve? 

Can I suggest that you created the Preset with a Parametric Curve adjustment (indicated by the dot under the s-curve icon).

And your screen image shows you have the Point Curve selected after applying the Preset.

The two curves work independently  (Parametric and Point)

Click on the s-curve icon and you should see your Preset curve adjustment.

I am trying to save a preset I have created, however when I apply the preset on an image the point curve setting is missing. I am not sure why this is happening as I've previously successfully saved presets without settings being missed.

My Lightroom CC is up to date (V6.4), I have restarted it too.

This is what the selection looks like when I press "Create Preset" as you can see the tone curves are ticked

However, when I apply the preset, the point curve doesn't change.

Please could someone give me some advice, thank you.