Photoshop CC 19.1.6 Scaling Stroke Layer Effect Strange Behavior

I've run into some odd behavior that is reproducible. When applying a stroke to a shape and then scaling the stroke, the stroke will sometimes scale as expected and sometimes not. There does not seem to be a reliable way to know when it will work and when it won't, though luckily the same settings will produce the same results each time so it can be relaibly reproduced.

Strokes can be applied either through layer effects OR via the shape property stroke settings. Results will be the same.

Once a stroke is on a shape going to Image > Image Size and scaling the entire image up or down WITH scale styles enabled will produce seemingly erratic behavior. Sometimes the stroke will scale based on the settings you've chosen. Sometimes it won't.

I have previously posted in the forums and had a few other users report that they were able to reproduce as well. The full thread with pictures can be seen here.

Here's the except from that thread that I posted on how to reproduce:

1. File > New
2. Enter a value for the width and height. In this example I will do 100x120, 72ppi, RGB 8 bit
3. Create a shape. I'll select the rounded rectangle tool and draw a rectangle on the canvas. In my example I ended up with a rectangle with these values: w:77, H:102, X:12, Y:8, a corner radius of 10px, a white file and no stroke.
4. Double-click the layer to add a style. I'm using a stroke of 2 pixels, position outside, blend normal, 100% opacity, red with fill color.
5. Image > Image Size

Given the above:

• Change the resolution to 620ppi: stroke scales correctly
• Change the width to 500px: stroke scales correctly
• Change width to 1000px: stroke scales correctly
• Change width to 877px: stroke scales incorrectly
• Change width to 878px: stroke scales incorrectly
• Change height to 620px: stroke scales incorrectly
• Change height to 900px: stroke scales correctly

Thanks for taking a look at this issue!