Hi Jodi,
thanks for your post, and sorry for the trouble.
Good to hear that you already made the switch from WP-Table Reloaded to TablePress!
About your issue:
The reason for this is the "Size" column, which has text in two lines of text. Due to that, the height of the rows (in responsive mode) can not be determined correctly and has to be set with CSS.
Please try adding this to the "Custom CSS" textarea on the "Plugin Options" screen of TablePress:
.tablepress-id-1 td,
.tablepress-id-1 th {
height: 59px;
}
Regards,
Tobias