	Product(s):	OpenBuildings Designer
	Version(s):	CONNECT Edition & V8i
	Area:	General
	Subarea:	Preferences

Problem

I am suddenly experiencing issues, errors and odd behaviors in OpenBuildings Designer. For example:

When I open a DGN file for the first time after starting OpenBuildings Designer I would like the view windows to appear the way I left them when I closed the file. I have Save Settings On Exit ticked but the windows are automatically rearranged.
Sometimes I experience somewhat random glitchy behavior while working, such as tool settings not being retained or graphics temporarily displaying incorrectly.
OpenBuildings Designer suddenly starts generating errors when I try to create a Dynamic View.
Ribbon and User Preferences customization settings are not saving

Solution

For intermittent odd behavior we recommend that you first try regenerating your local \prefs files:

1. Close OpenBuildings Designer.

2. Use Windows Explorer to browse to your \prefs folder, by default found under C:\Users\your.name\AppData\Local\Bentley\OpenBuildingsDesigner\10.0.0\xxxxxxxx\. This location is defined by the configuration variable TFDIR_PREFS.
You can also check the preferences location by choosing File > Settings > Configuration > About Configuration in CONNECT Edition, or Workspace > About Workspace in V8i.

3. Rename the \prefs folder to "\123prefs" or similar. Make sure to change the characters at the beginning of the name, otherwise OBD might sometimes use the older one instead of generating a new one.

4. Restart OpenBuildings Designer.

This will generate a new set of preference files which may help resolve these random issues.

Regenerating preference files to help resolve random odd behavior

Problem

Solution