P: Non-destructive blur for masking doesn't save correctly anymore

Great! I have spent a lot of time trying to fix the same issue when the "Density" of the mask is not 100%, until I find that post. Unchecking "Save in Background" solved my problem. Thanks a lot!

Same problem for me PS and LR CC latest version, Jeffrey's workaround works too, thanks a lot!
Hopefully Adobe can fix it in the next update... when I export jpg it's always from LR.

Ditto here.  Not being able to save in background really slows my workflow down!

As described in the title, when I bring a Tiff photo into Photoshop, create an adjustment layer (curves for example), apply a mask, then feather, the saved image in Lightroom does not show those feathered edges. Instead, they all look like they were applied with a brush at hardness 0.

Top image shows lightroom version, bottom image shows photoshop version:

Lightroom (CC 2015.4) does not preview the TIFF (or PSD) correctly when feathering is used on layer masks.

The shot at the top is in Photoshop (CC 2015.1.2) with a feather adjustment layer to create the eye shadow and below is how the TIFF looks in Lightroom. It also exports exactly the same and has caused a major issue when I've exported all my edits only to find the images I've sent to clients do not look as expected. My only option it seems at the moment is to create a merged copy layer before saving the image.

You're absolutely right. It was tagged as Lightroom, and I noticed the issue in Lightroom. I have unchecked it in Photoshop and that fixed the issue. Thanks.

That might be because you are in Lightroom, and this topic is about Photoshop.

I'm having this issue on Windows 10, and I don't seem to have the Save in Background option anywhere.

Turn off Save in Background and try to replicate your bug. If it is fixed, then maybe it is related, otherwise create a new bug report, otherwise It'll be two versions later Adobe can fix it.

Definitely create a new bug thread with this behavior.