Thanks for pointing this out. In fact, it is only a menu problem indeed. The dialog-box itself works fine as well:
. db nwtabulate1
In order to fix the menu problem, please update to version v1.3.2 and then refresh the "Network Analysis" user-menu with:
. nwinstall, usermenu
This will clear and re-install the user-menu. Unfortunately, Stata does not provide a way (or I have not figured it out yet) how to delete/re-install specific user-menus only, hence, this procedure will clear other user-menus you might have installed as well. Be aware :-(
Best,
Thomas