P: Shortcuts using Alt key aren't working correctly (e.g. Alt-Backspace)

I have to hit Alt.-backspace twice for it to work. This is only since upgrading to 2018. It's driving me nuts.

It seems like the update to Photoshop CC 2018 has caused a few problems. Aside from the annoying ones (those tooltip help videos are killing me), it seems like modifier keys (shift, alt) aren't working right for me anymore.

In 2017, I used to be able to hold alt and press the arrows to make a copy of the layer. That no longer works for some reason. I can hold alt and drag the mouse, but that doesn't help me at all. I'm working on a grid, and everything needs to line up, so I use pixel counts to do so (in order to properly size mockups for our developers). Now I need to copy the layer by alt-dragging the mouse, then move it back to it's original position, then use the arrows to move it. Why was this changed?

Along the same lines, I often use shift-arrows to move things by 10 pixels. Half the time this works, 25% of the time it doesn't move at all, and 25% of the time it moves by 1 pixel instead. All while I'm still holding the shift key (not even letting go in between!). I use this function hundreds of times a day. These issues have slowed down my production by half!
 

That's not a solution, that's a workaround for a broken key behavior.   A solution would be a patch.

Hi, I have a solution. ALT key pressed after pressing and BACKSPACE key pressed 2x

2018 cc Ctrl Alt W works on occasion, I have to go to file Close All, when I do that with 48 or 50 pics, it increases my time substantially. Is there a fix ?

The alt key has had it is behavior changed in CC2018 and this is disrupting a lot of people's workflow. I doubt this change was intentional.

Now if you hold the alt key, it focus on the application menus (File, edit, ...) instead of listening for the rest of the shortcut. So if you want to use any alt related shortcuts, you need to hit the rest of the keys twice without letting go of alt - once to clear the focus on the menus, the second one for the shortcut to actually work.

Related and very popular shorts disrupted by this change are ctrl+alt+Z, or alt+backspace (and alt+shift+Backspace).
If you start the shortcut with ctrl, alt behaves properly; It you start the shortcut with alt, the problem occurs. Setting commands to wacom tablet's shortcut keys also seems to be triggering the bad key behaviour and breaking a lot of setups out there.

Basically all shortcut combination using the "Alt" modifier key is broken. I can't use Photoshop anymore for illustration work, except it takes 5 times longer to finish as I need to browse to menus to find certain tasks where they  usually can be done fast with shortcut.  Is there any fix for this yet?

I can't believe we're still waiting on a fix for this.  It's been over a week.  There should have been a fix within 24 hours.  For that matter, it should have never happened in the first place.   This is highlighting an abysmal level of internal quality control and testing.  It's an embarrassment and a massive stain upon Adobe's already dubious reputation. 

 Photoshop CC 2018 is an Edsel in my eyes, or an Assassin's Creed Unity, to use a more modern comparison.  Adobe has become as bad as the AAA game studios who prioritize microtransactions (Adobe Stock, CC subscription) over bugfixes and care more about keeping that user revenue stream flowing than providing an actual functional and performing product.

With all the competition bought out or eliminated, Adobe has become smug and arrogant and thinks it's too big to fail.  But conditions are ripe for someone to topple the pedestal, and I won't be sad when it finally happens.  As someone who's used Photoshop since version 5.0 in 1998, I used to sing Adobe's praises, but the direction it has gone since about 2013 has really soured me on the company.

One thing is for sure, I'm glad I bought a permanent license of CS5 when I did.  My employer is footing the bill for CC and I don't use it at home.  I would never pay a monthly fee for this kind of broken, untested, bug-filled, cash-grabbing rubbish.  About the only useful thing added since CS5 was perspective warp, and I can definitely get by without it.  It's all pointless, unnecessary bells and whistles: artboards, ridiculous embellishments to the interface, 20 instances of CEPHtmlEngine running in the background, Rich Tooltips, bloat upon bloat, and spam pop-ups for Adobe Stock - no, thank you! 

I certainly have some strong opinions about the direction Adobe has taken since going subscription-only, but for the sake of my job, and all the other users who have no choice but to use this broken debacle of a release, I sincerely hope you'll release a patch ASAP.

Another CC release, another game of "What did Adobe break this time?"

Same here, Win10. But it works every time if I press keys slightly delayed, one after another. Hitting Shift+Ctrl+Alt+S the same time does nothing, whereas Shift>Ctrl>Alt>S works.