Hi,
After updating to Joomla 3.7.4 I recognized that the contact page is broken. The page is linked as menu item type "single contact".

If I open the contact page directly (index.php?option=com_contact&view=contact&id=1) all items are displayed. This works as a workaroung, too (menu item type: external url). Template 2046 got an update fixing contact issues, maybe 2055 needs one, too.
Thanks
Jens