P: Masking overlays do not always appear (Mac)

[Sunwoo Kim 1237]

Lightroom overlays do not appear.

The overlays do not appear and no matter how many settings I change, they do not respond at all.

[yomikestevens]

This still doesn't work for me. No matter what I toggle, I very often have situations where I cannot get a mask overlay to appear. I've read all of the replies in this thread and there is no "try this" step that I have not tried. 

I'm using Lightroom 8.4 on MacOS 15.5, but this issue has been going on for... months? Years? This is simply the first time I've finally been unable to ignore how frustrating it is. 

In the below screengrabs, I have hovered over the mask in the toolbar – you can see that it shows the tool icon over where the mask should be, but not the overlay. 

In the below image, I've increased exposure to 100% to show the mask selection. 

So, again, while you're out here regularly increasing prices, what the heck is going on? 

[fsafdssaf]

This exact issue has returned in the latest Lightroom update, this is insane.

[donald23080890g18y]

I am running version 8.5.1 and I'm still having this issue on Sept. 23.  It is very annoying.  I'll edit a photo and everything is good with the overlay toggle until it's not.  The toggle just stops working.  I usually have to close and reopen LR and sometimes that doesn't work

[Peroca]

I'm running Lightroom 8.5.1. y MacOS 26.0.1 and the error continues. Before the last update, I can "resolve" it restarting the app over and over, but now I can't. Restart doesn't work 😞