	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.

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