Keyword Difficulty: Temporary problem gathering Analysis data

[samueltb]

I did two searches using the difficulty tool. On the third run report, I encountered an error with a message that there was a temporary problem gathering Analysis data. It said that I should wait 20 minutes and try again.

I have experienced errors with other keyword difficulty tools. I wonder how intermittent this problem is. Is the error known.

[samueltb]

Failed queries

Time      Query, Resp Time (s)
8:00 PM san diego craft beweries, 30++

8:07 PM san diego craft brew supplies, 55 +-5

8:13 PM craft brew merchant software, 30++

8:19 PM craft beer store app

[samueltb]

I tried the same search tonight and I got some results. After about 5 more tries I got this error again.

I tried the search again for "restaurant dashboard". I worked. New query. Error.

I can't remember what I searched last night.

Here is some info I pulled from Chrome Dev Tools. 
I searched for "gym dashboard"

User-Agent:Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31

1. Request URL:http://pro.seomoz.org/tools/keyword-difficulty
2. Request Method:GET
3. Status Code:200 OK

Query string:

ajaxretry=off&commit=Run+Report&date=2013-05-06&engine_id=96&keywords=gym+dashboard&utf8=%E2%9C%93

Response Headers:HTTP/1.1 200 OK Date: Tue, 07 May 2013 02:20:43 GMT Server: Apache/2.2.14 (Ubuntu) X-Powered-By: Phusion Passenger (mod_rails/mod_rack) 3.0.9 ETag: "d5fabd7d7b413ec7a14522e8a37d08d9" X-UA-Compatible: IE=Edge,chrome=1 X-Runtime: 0.093438Rendered error message:<divclass="kwd_error">Uh oh... there was a temporary problem gathering Analysis data for your request. Sorry about that! We're actively looking into resolving these intermittent issues, but in the meantime, try submitting your request again in 20 minutes. Thank you!</divclass="kwd_error">Console errors: GET http://ad.retargeter.com/seg?add=85254&t=2 keyword-difficulty:681GET http://a.adroll.com/j/roundtrip.js keyword-difficulty:732
  window.onload  keyword-difficulty:732
  NREUMQ.f  keyword-difficulty:743
 I searched "gym dashboard" again and got results.I'm searching more now and not getting any issue.

[SamWeber]

Hm.   Bummer Samuel!

This isn't really a known error.  Very rarely someone will report an intermittent problem with our keyword analysis tool or our rank tracker. When it does come up, it seems to only affect certain keyword/phrase combinations.

We haven't received an in flux in bug reports about this and it remains rare and hard to pin point. We'd love your help in identifying a cause. Would you feel comfortable adding the query you tried to this thread? If not, would you mind emailing help@seomoz.org so we can try the query and look for clues?

We just tried running a query similar to one you ran successfully, and it returned full results.

Thanks for letting us know you had a problem. We'd love your help trying to pinpoint this sneaky bug.

Best,
Sam