The BMC_DM8I Missing Resource Bundle is referring to certificates missing. If TSPS is running on custom CA Certificates, they will need to be imported into the TSPS modules/jre directory and then restart TSPS.
We have seen success after importing the certificates in the JRE and restarting TSPS.
Another reason could be if old certificates have been expired and new certificates are imported then the old expired certificates needs to be removed for the policy export to work.
If that still fails, we request that you open a case with BMC Support for further assistance.