Decryption fails running iOS 14.2

Yeah really Kev. It's an Apple issue, not Dropbox. I would suggest you move on to Apple discussions.

anyone can help me fix this problem?

Kev19,

I don't know why you and others think this is a Dropbox issue and are blaming Dropbox.  I read this often despite the number of posts here and on the Apple and Microsoft Forums explaining that the issue is caused by a change in how Apple is handling these password protected files.

JohnK2 is correct, this was caused by Apple and will only be fixed by Apple - that is "if" they decide to revert back to their formal handling of these type of files.  

Go find a work around solution that you like, there are a few mentioned on this Forum.  I say one that you like because I am not convinced this was an oversight by Apple and therefore your personal work around solution may become your new way of opening these password protected files.

We all hate change that we perceive as a step backwards but unless we sit in the Apple Engineering/Design center, we may not fully understand the rationale behind them.  I too hope this was a mistake but to be honest, I rather like my work around for the reasons I have already posted on this site.  It is now my go to solution and I don't even find myself trying it the old way due to the new way having more benefits.

So Kev19 and others, get on board and move forward, its 2021 and we all want to leave 2020 behind us :grimacing:

Hey, alvileomatthew, welcome to our community. 

Sorry to hear about this. Can you tell me more about it? 

- How are you trying to open these files, exactly? 

- What types of files are you having trouble with? 

- What device and operating system are you using? 

Let me know, and we’ll go from there! 

I got a new iphone w/ the new operating system, and was having the same error msg.  I tried everything mentioned here, even linking the phone with the "Other Source":  Dropbox.  That didn't work either.  Until Apple fixes this, at least I can open it thru the Excel app.  

Marla

I'm posting this agsin because people seem to still be struggling with this.  The work around is not elegant, but it works:

"I diiscovered the work around to this.  After entering your password and getting the "Decryption failed (null)" message you will see a square with a line drawn from the upper right corner to the center of the square.  Tap that square icon, select "Microsoft Word" (I assume if you are attempting to open another type of file that application name will be listed).  Re-enter the password and the file opens."

I'm finding that the after clicking to open a password protected document in Dropbox, the above mentioned square appears routinely at the bottom of the page.  

Thank you - although opening thru the Excel app works, I'll use this way, as once Apple fixes the problem, opening from Dropbox  will work seamlessly.  

;)