Yes, those will still cause issues in network atlas.
Below is a list of what are considered forbidden characters.
@-.+*!(^)&%`~,?|[]{}°$ \\/:;'\"<>#=
Regards,
Matthew Harvey
What's the easiest way to get rid of these... luckily I didn't do the latest upgrade to NPM so I still have the actual custom property editor app :}
You'd have to export the custom properties using the old editor, delete the property, recreate it replacing the above character (whichever is used in your property) with a word or abbreviation. Then re-import the values. Another method, which is less time consuming, is a SQL query I've used several times without issue which can be used to rename the column.
EXEC sp_rename 'Nodes.Serial#', 'Serial_No', 'COLUMN'
The example above shows that this query will rename a column named Serial# to Serial_No. You can use the above using the database manager or SQL Management Studio replacing the Nodes.Serial# and Serial_No values with your column name and desired column name and it will do the same as the export, delete, recreate, import, just much faster. I know some people aren't comfortable with SQL so I've given examples of both ways to do this.
Loop1 Systems