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Wolfram Alpha: ODE step-by-step gets blacked out?

GROUPS:
Sometimes when I try to solve an ODE in Wolfram Alpha, the step-by-step solution gets blacked out. Why does this keep happening?

Thanks!
POSTED BY: Noe Brito
Answer
10 months ago
Are you seeing this in your web browser or in Mathematica?

What operating system and web browser are you using? If possible, would it be possible to see a screen-shot of the problem? 

Does this problem happen when you try different web browsers?
POSTED BY: Sean Clarke
Answer
10 months ago
http://imageshack.com/a/img34/6518/0teb.png
Hey there, thanks for the reply.

It happens in the web browser. I am using Internet Explorer 11. I tried it in Firefox and the same thing happens. I'm using Windows 8.1.

Note that it doesn't seem to happen ALL THE TIME. Just intermittently. It's just pretty annoing since I am paying for the service and I constantly have this problem.

Here is a screenshot (above).
POSTED BY: Noe Brito
Answer
10 months ago
I've had the same issue, it only seems to happen with the method of undetermined coefficients. A way around it that I have found seems to work fairly consistently is to click the "Customize and Save Image" button, which displays the working without blacking it out.

Bear in mind this works with Google Chrome, it may not work with Firefox and/or IE11 (haven't tested).

It is just a workaround though, hopefully this gets fixed.
POSTED BY: Liam Stevens
Answer
10 months ago
Wow, great find Liam Stevens! That will do for now. Hopefully it gets figured out soon!
POSTED BY: Noe Brito
Answer
10 months ago
Thank you for letting us know about this. I've forwarded this information to the developers working on Wolfram|Alpha to ensure that they are aware of the issue. 
POSTED BY: Sean Clarke
Answer
10 months ago
Just want to chime in here and say I had the same problem, and as I'm using it for free it was particularly infuriating since I didn't know what was going wrong and I wasn't able to re-try different inputs.  I work at a university and it wouldn't be a big deal for my lab to subscribe me to the Pro service but I certainly can't do that as long as this doesn't work.  I note though that if you reveal one step at a time, it will show most of the steps, but when you hit one near the end, then suddenly everything gets blacked out (I want to see those steps though!).  My input to produce this was

y''(t) + a*y'(t) + b*y(t) = x(t)

NB, this equation did not have a problem:

y''(t) + a*y'(t) + y(t) = x(t)

The bug appears to arise where the pathways for solving these two equations diverge.
POSTED BY: Matt Phililps
Answer
10 months ago

Bug still exists. Been getting these all day. This is the raw PNG I get from right,click, saving:

Customize & Save Image saves the day by fixing the colors

This is the raw PNG I get from right,click, saving

POSTED BY: Nebi Cicek
Answer
2 months ago

I am experiencing the same thing! Very frustrating. However, the 'customize and save image' button also works in FireFox. Thanks Liam Stevens!

POSTED BY: jonathan miller
Answer
2 months ago