Asset or field names not accepting special characters

Issue Description
There are several special characters that are rejected by the Marketo system on the backend and can cause errors or strange behavior when attempting to use them in asset or field names. These characters are:

[ ' " < > { } ; ]

Issue Resolution
These characters should not be used. Most often an error will be given by Marketo if this is attempted. However, in the event that the name is accepted there is a good chance that you will see some strange behavior when attempting to use the asset. There is a large range of different behavior that can be seen and they are all very unpredictable, so the best choice of action is to not use these characters with asset or field names at all.