Answers.Body: <p>Looks like the server didn't like the .htaccess file we use for Craft 2 - specifically this part: </p>
  
  <pre><code>&lt;IfModule mod_mime.c&gt;
     AddCharset utf-8 .atom \
                      .bbaw \
                      .css \
                      .geojson \
                      .ics \
                      .js \
                      .json \
                      .jsonld \
                      .manifest \
                      .markdown \
                      .md \
                      .mjs \
                      .rdf \
                      .rss \
                      .topojson \
                      .webapp \
                      .webmanifest \
                      .xloc \
                      .xml
  &lt;/IfModule&gt;
  </code></pre>
  
  <p>There weren't any errors in Craft but the PHP logs did have some information that helped us track this down.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2019-02-18T21:04:47.443Z
Answers.LastActivityDate: 2019-02-19T00:11:32.397Z
Answers.LastEditDate: 2019-02-19T00:11:32.397Z
Answers.UserDisplayName: Matthew Rotter
Body: <p>Just like the post says, I'm getting unknown errors when selecting a category from a field. Nothing shows up in the craft error logs but here's what the console says: </p>
  
  <p><a href="https://i.sstatic.net/MZ2HJ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/MZ2HJ.png" alt="error"></a></p>
  
  <p>Just wondering if anyone else experienced this or if it's just a problem with our build. </p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-13T19:18:04.720Z
Comments.Text: Looks like we're getting a 500 error with the modal trying to load this page: /index.php?p=admin/actions/elements/get-modal-body
Comments.UserDisplayName: Matthew Rotter
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-13T23:53:48.510Z
Comments.Text: If you check the Craft `storage/logs` folder, the underlying 500 ISE error message should be there.
Comments.UserDisplayName: Brad Bell
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-14T15:52:57.000Z
Comments.Text: @BradBell I cleared the error logs and tried again. Only thing I got was a warning that it couldn't find the retour icon:  2019-02-14 09:47:42 [-][1][-][warning][craft\controllers\DashboardController::_getWidgetIconSvg] Widget icon file doesn't exist: /home/234685.cloudwaysapps.com/genxabcuuj/public_html/vendor/nystudio107/craft-retour/src/assetbundles/retour/dist/img/icon-mask.svg
Comments.UserDisplayName: Matthew Rotter
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-14T16:14:20.473Z
Comments.Text: It's giving me the same console error: there's a notification that say "Double-instantiating a menu button on an element" and then "failed to load resource" with that same element – Matthew Rotter 15 mins ago    Delete
Comments.UserDisplayName: Matthew Rotter
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-15T18:22:43.487Z
Comments.Text: @BradBell any idea on this? We think it could be server related because it happens more frequently on some environments but it's difficult to find a pattern
Comments.UserDisplayName: Matthew Rotter
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-15T19:11:22.430Z
Comments.Text: Looks like it was a server issue with something in our htaccess file. We checked the server errors logs and found it
Comments.UserDisplayName: Matthew Rotter
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2019-02-16T00:10:15.097Z
Comments.Text: Glad you got it sorted... would you mind adding it as an official answer? Might end up helping someone in the future.
Comments.UserDisplayName: Brad Bell
Tags: <error>
Title: Unknown Errors when trying to select category
ThreadText: # Unknown Errors when trying to select category
  
  (Asked by: username_0 on 2019-02-13)
  
  Just like the post says, I'm getting unknown errors when selecting a category from a field. Nothing shows up in the craft error logs but here's what the console says:
  
  [![error](https://i.sstatic.net/MZ2HJ.png)](https://i.sstatic.net/MZ2HJ.png)
  
  Just wondering if anyone else experienced this or if it's just a problem with our build.
  
  **Tags:** error
  
  > **Comments:**
  > **username_0**: Looks like we're getting a 500 error with the modal trying to load this page: /index.php?p=admin/actions/elements/get-modal-body  
  > **username_1**: If you check the Craft `storage/logs` folder, the underlying 500 ISE error message should be there.  
  > **username_0**: @username_1 I cleared the error logs and tried again. Only thing I got was a warning that it couldn't find the retour icon:  2019-02-14 09:47:42 [-][1][-][warning][craft\controllers\DashboardController::_getWidgetIconSvg] Widget icon file doesn't exist: /home/234685.cloudwaysapps.com/genxabcuuj/public_html/vendor/nystudio107/craft-retour/src/assetbundles/retour/dist/img/icon-mask.svg  
  > **username_0**: It's giving me the same console error: there's a notification that say "Double-instantiating a menu button on an element" and then "failed to load resource" with that same element – username_0 15 mins ago    Delete  
  > **username_0**: @username_1 any idea on this? We think it could be server related because it happens more frequently on some environments but it's difficult to find a pattern  
  > **username_0**: Looks like it was a server issue with something in our htaccess file. We checked the server errors logs and found it  
  > **username_1**: Glad you got it sorted... would you mind adding it as an official answer? Might end up helping someone in the future.  
  
  ---
  
  ## 1 answers
  
  ### Answer by username_0 on 2019-02-18. Score: 1 | Accepted answer
  
  Looks like the server didn't like the .htaccess file we use for Craft 2 - specifically this part:
  
  ```
  <IfModule mod_mime.c>
     AddCharset utf-8 .atom \
                      .bbaw \
                      .css \
                      .geojson \
                      .ics \
                      .js \
                      .json \
                      .jsonld \
                      .manifest \
                      .markdown \
                      .md \
                      .mjs \
                      .rdf \
                      .rss \
                      .topojson \
                      .webapp \
                      .webmanifest \
                      .xloc \
                      .xml
  </IfModule>
  
  ```
  
  There weren't any errors in Craft but the PHP logs did have some information that helped us track this down.
  
  
  ---
  
  