Sterling, where as I appreciate the effort made by Apple employees on the support forums providing support to these types of issues, it is incredibly frustrating when the core of the response of an Apple introduced bug from a service pack or a hotfix is for the users to rebuild their machines or devices.
I say this because I recently had to rebuild my Mac Pro after a memory leak was introduced in Yosemite for iPhoto, it occurred not immediately but in fact about 3 weeks after I upgraded, yet I was told a rebuild was the solution. That effort took a good deal of time to accomplish, with no real guarantee that this issue won't suddenly repeat as randomly as it did the first time.
Now today, despite installing 8.1.2 shortly after release a few weeks ago, I have suddenly seen my apps are not available in Spotlight searching on my iPhone and again the recommendation is to rebuild !!
In an entire eco system governed and controlled by Apple, why should users have to rebuild devices. If multiple users are seeing these issues surely it is far easier for Apples development teams to identify a solution and release a fix than multiple users rebuilding devices with no guarantee it won't repeat itself.
Like BPasters on this post I have the same issue. 'Opolis' would appreciate if you elaborate on your solution. I did get it briefly resolved by turning of apps in Spotlight search then fully rebooting my machine (holding home and power button) but the issue has since returned.
Regards
M Durbs