No Strata Main Input Option

Hello,

I am trying to add an engineering description for CPTs in a CPT log. To do this I am enterring interpreted soil descriptions under the Strata Main option on gINT. However, when I go to the Strata Main tab there are no rows in which I can enter data and no options to add rows. All other Main Group Input tabs seem to be working without issue. 

I have done this before no problem before with CPTs so I am wondering what the issue may be? Thank you very much in advance!