It's an annoying bug, without question. I have been a designer longer than some of you have been alive, that being said, the downgrade to 2024 is a great solution. I work on a Mac and find that if I leave a project open for prolonged periods of time, it triggers this bug. I save often and will restart photoshop when it shows up. I hate downgrading personally.   ... View more

The Actual fix is to: FILES -> DOCUMENTS and change the units in there. Problem fixed! ... View more

These answers are all rubbage, There is an override preset in Adobe blocking the Unit change. I still have not found the solution but changing your graphics card is ridiculous.   ... View more

I don't know if you have read my posts just above but do yourself a massive favor and just go back to Photoshop 2019. The lack of caring or incompetence that Adobe has shown is clear, they do not care about you, your issue, or their reputation. ... View more

Here is the thing that makes this even more special. I wrote that and said "What the Heck... I will give support another call (masochism must be in my genetic code somewhere). So 1 hour and 28 minutes in the line up to talk to the Adobe guru to find out if the new update actually fixed the issue that ALL of us are having.  You know where this is going.   Add an additional 2 hours and 23 minutes, 4 dropped calls, 86 "can you please repeat that you are breaking up or your accent is too heavy for me to understand and I kid you not, 76 permissions changed to Read & Write along with 43 apologies. Did it work? NO!   Then Arjun (my tech support guy)  had a momentary lapse of genius... and said to me..... I think you should go back to Photoshop 2019... @_@ <---- my bewildered expression to what would have saved me nearly 4 hours of excruciating pain of dealing with the massively incompetent which is clearly the new Adobe.   I hope you enjoyed my follow-up  ... View more

Good News!!! because misery loves company! I have been dealing with this for months while receiving complete and total disregard for answers from Adobe. Not only am I contracted to visual information for several large companies... I am on contract with a Medical Center for IT.. Let me tell you if I responded the way Adobe has I would rightly so get fired!    Is it related to the Operating System? The performance issue was present in Mohave so I upgraded to Catalina (Logical yes?) Did it work? NO! In fact, it has gotten significantly worse.   Is it related to File size? Kind of,  but it appears to be a caching issue to me if I were to guess. The more the files are layered and modified the slower and SLLOOOOWWWER and SSSSSSLLLLLLLLOOOOOOOOOOWWWWWWWWWERRR it gets.   With 213,763 actual searches for "Photoshop is running slow"  search yields 6 million + but. As a significant problem, this is freaking huge.     Example of a Monopoly were they give you crap and make you say it tastes good.   Maybe it is time for us all to dump it and try something new.   Here is my best advice until Adobe realizes they need to support their products. https://www.creativebloq.com/photoshop/alternatives-1131641 That is 13 alternative rated programs to use instead of Photoshop.   Who knows maybe if enough of us leave they might actually fix something. BTW I have used Photoshop for 28 years. #time-to-quit-photoshop!   Well, that is my opinion with 138 replies to this and no real answers tell you how much Adobe cares. ... View more

Crap I was hoping to get an answer to the same problem and here I am in Support hell with all my friends.  I literally had to dust off an old mak that was running a super old version of Photoshop to get some time-sensitive work finished. HEY ADOBE pull your head out...lack of oxygen is making you stupid! ... View more

This is very frustrating. If I am understanding this when I import a document from another designer I can not change the units? This seems to be the case: I went to preferences - Units and the ruler did not change. That seems very broken and yes I agree this has been this way for far too long. ... View more