P: Black border in Filmstrip after installing 15.3

If you close LrC and re-open it, the black border has gone. It happened when I updated AI tools after some new edits.

This is not normal. There is a bug here in LrC 15.3.

In the Filmstrip, the selected photos has always had a white outer border around the thumbnail. All thumbnails also have a thin black border. As  @Bob Somrak points out, if a photo has the Pick flag set, the thin inner border changes to white, making the border on selected photos with the Pick flag appear to have a thicker white border.

Below is a screen grab of the Filmstrip showing this behaviour in LrC 15.2.1 after photo has been Denoised:

The appearance of the Filmstrip thumbnail borders didn't change when Denoise was applied.

On launching LrC 15.3, the Filmstrip thumbnails initially show the same borders as they do in LrC 15.2.1, as shown below:

When Denoise is applied to photo 6, the thin inner border thickens. As you hover over other thumbnails in the Filmstrip, their thin inner borders also become thicker. In the screen grab below, I had hovered over photos 1 and 8:

Note the difference between photo 8 and photo 3, both with the Pick flag, but photo 3 hasn't been hovered over, so has a thin white border. Also note the thumbnails right of those with thicker borders have a thicker left border.

Switching to the Library results in all thumbnails in the Filmstrip being shown with thicker inner borders, as shown here:

None of this border thickening happened before 15.3. When LrC 15.3 is closed and relaunched, all Filmstrip thumbnail borders return to the normal thickness until the next Enhance (Denoise, Raw Details or Super Resolution).

It’s a regressive bug in LrC 15.3 and shouldn’t happen.

this happens everytime i use denoise on a photo borders aper on all other photos in a strip, definetly not happening version prior to this

Weirdly I am seeing opposite behavior. This is unpicked:

This is picked:

So you get a thinner black line with the pick flag on.

This is with HiDPI on unpicked:

This is HiDPI picked flag on:

Which interestingly shows three different shades. A light grey, a white, and a black line.

​@Rob_Cullen 

You have a White Border because the image is Flagged.  Unflag it and it will turn Black.  

Being curious I checked my LrC UI - The white border exaggerated around a selected image is normal and has always been- but the BLACK border - I don’t know.

I see a difference between the view of ​@C.R.Clausen and my view of the filmstrip. I do not see the black borders on un-selected images (except for a very fine one on my selected image).

Here is a clip from a Youtube video made 8 years ago and a link to the video.  It has not changed.

agreeing with ​@AxelMatt 

I think that white border is supposed to be there. When you select a photo, the white border appears. If you select another photo, the white border moves. If you de-select that photo with the white border (Edit->Select None), the white border is gone.

So in my opinion, this is not a bug. This is the correct behavior of the software. And I’m pretty sure this has been the way LrC has worked for years now.

It appears after applying ai settings and updating them. When you close and restart lr after, it disasapers. So i believe it is a bug.

I think this is a normal behavior. I already see this on my machine and I checked a older version (14.5.1) and there’s the same.