Missing masking settings on TDM Portal. The last masking setting displayed is SEEDTABLE.
TDM Portal 4.11.2012.0
Appling patch TDMWeb-4.11.2017.0.zip and later will resolve this issue.
TDM Patches can be downloaded from: Test Data Manager (TDM) Support Patches
How to apply patches can be referenced from this KB: How to apply patches for TDM