I've updated my config, but Umbraco refuses to pick it up. What am I doing wrong? It picked up the last set of changes, but not this time.

• Umbraco version 7.7.8
• UmbracoForms.Package.6.0.6
• Umbraco Forms on Perplex Steroids 1.8.2

Config attached below

<PerplexFileUpload>
<AllowedExtensions>
  <Extension>mp4</Extension>
  <Extension>mpeg</Extension>
  <Extension>m4v</Extension>
  <Extension>avi</Extension>
  <Extension>wav</Extension>     
  <Extension>mp3</Extension>     
  <Extension>aac</Extension>     
  <Extension>flac</Extension>     
  <Extension>mov</Extension>
</AllowedExtensions>
<MaxFileSize />

<PerplexImageUpload>
<AllowedExtensions>
  <Extension>jpg</Extension>
  <Extension>jpeg</Extension>
  <Extension>png</Extension>
  <Extension>bmp</Extension>
  <Extension>gif</Extension>
  <Extension>tif</Extension>
  <Extension>tiff</Extension>
</AllowedExtensions>
<MaxFileSize />