Photoshop CC2018 Smart Filters turning off

Is there a keystroke which turns off all smart filters within a scene?

I ask because I am working on large composited images with many smart objects, many of which have smart filers (mainly sharpen or high pass) applied to them.

Sometime when working on these I have noticed that all the smart filters have been turned off (visibility off).  That is every smart filter on every smart object in the scene has been disabled.  I cannot find any reference to a way that you can turn all smart filters in a file on or off so I am trying to find out what is causing it to happen.

It's pretty annoying when it does happen as the files often have up to a hundred layers many of which are smart objects with smart filters that then all need turning back on by hand one by one.