P: Preview only toggles once during action

Since the update to the latest version of CC (currently 2015.1.1 version) when using filters such as gaussian blur, if the blur preview is visible, I'll untick the preview box which turns it off. If I then tick the preview box again the preview doesn't appear until I change the values for the blur (radius in this case).

Same seems to happen with other filters.

I've only been able to reproduce this when the filter is part of an action though, using the modal dialog option for pausing the action to select your values.

It makes very typical actions for frequency separation etc very difficult to use.

After updating to CC 2015.1.2, the preview checkbox for at least some filters (accessed by 'P', spacebar or mouse) only works once. It will not work again for back and forth comparisons. But this is only true if the filter was called by an action. If the filter is started off the menu it works as it should. Even if I make a new, post-2015.1.2 test action which only calls, say, Unsharp Mask, it fails to work a second time.

I've noticed this bug for a while and it's still not been fixed, perhaps noone is aware?

If I open an image, then choose Image -> Adjustments -> HDR Toning... the image appears with the new HDR look.

If I want to see what the initial version looked like, I can untoggle the Preview button on the right of the dialog (beneath OK and Cancel). However, if I re-toggle the Preview button nothing happens until I change another parameter and then the image updates.

In short, the Preview button only works once (when you turn it off) and it does not turn on again when it's reselected. This is intensely annoying.

I'm using Photoshop CC 2015.1.2, 20160113.r.355.x64 on a Windows 7 SP1 64 bit laptop.

There is  no preview box at all in the Levels adjustment layer....I'm not working with an action but just applying a layer. Without a preview box, it's not too useful. My workaround is Image/Adjustments/Levels, do my adjustments (which has a preview box that never goes away), then put a mask on that layer if required. That's ridiculous to have to do this. How hard can it be to make the Levels Adjustment Layer be the same as it was before the update - or even like it was in CS6?

That's right, but in working with Apply Image that effects too much disorientation for the visual sense. The only way open is to abstain from actions in the meantime, I think.

Yes, that does work, but I wouldn't consider it an efficient workaround. Thanks for looking into this.

Thanks. Our engineers are looking into this issue. A workaround is to tickle the slider to make a change to force the preview to update.

Same issue here with CC 2015 - and t's happening on two different macs! But it's only when running adjustments from an action. Makes my color correcting workflow useless.