I have noticed odd behavior where after refreshing the FNDB from the MiKTeX options, I am unable to use Kile to build my TeX files. When attempting to compile a TeX file it fails on the LaTeX step and doing a system check through Kile indicates that LaTeX is broken.
The source of the problem is that Kile is using FNDB files from the "%localappdata%\MiKTeX\2.9\miktex\data\le" path but MiKTeX doesn't update these files when you perform a FNDB refresh. The consistent way to solve this issue is to therefore go to that folder and delete all the files there. After doing so, when I try to use Kile to build my TeX files it regenerates the FNDB files in that folder and all subsequent attempts to compile LaTeX files succeed until I refresh the FNDB again from MiKTeX.
I'd like to understand why I have to manually go into this folder and delete those files every time after I refresh the FNDB from MiKTeX. Is the problem associated with MiKTeX or Kile? Would clearing the settings/configuration of either one of them potentially solve the problem? If so, where are the configuration files?
I am on a Windows 10 system using the latest version of MiKTeX 2.9 and the Kile editor incorporated with KDE on Windows (https://sourceforge.net/projects/kde-windows/).