Build Forge error about Missing expected character for some users

Resolving The Problem

1. Group Access
Does the user or users have the correct access to the page they are receiving the error from?
Are the users or user in a group that is unique or different from the rest?
If they have the correct access and they are not in a unique group, you may be able to rule this out as a possible cause.

2. Language setting
Is this user language setting unique or different from working users?

3. License
Is the user getting a license?

4. User Preferences
You can look to see if the there is any unusual in the users preferences by queering the database:
If you do not know the user's ID you can run the following to get that information
select * from bf_users where bf_login='<log-in of user>';
Once you have user ID you can run the following to view the User Preferences
select * from bf_preferences where bf_user_id='<user id>';
If you are unsure if there is something unusual you can compare them to a user that is not having this issue.
This table is transitive and can be rebuilt on the fly. So if we suspect this to be cause we can delete the users preferences by:

delete from bf_preferences where bf_user_id='<user id>';
commit;


5. UI filters
Does the user have any unusual filters to the page or pages getting the error?
We can view the user's filters by using the following query:
select * from bf_uifilters where bf_user_id='<user id>';
Again this table is transitive and will be rebuilt on the fly. If we suspect that this could be the issue we can delete the user's UI filters by using the following query:

delete from bf_uifilters where bf_user_id='<user id>';
commit;