Try the new version anonimo79. It should now also work for spending FP on yourself.
@bossking1984
I assume you were trying the 1.4.1.1 version. Do you get any notifications like "No available research was found." if not check the options for Spend forge points on research, Only spend when you have more than X forge points and check the resource tab for the number of forge points you have, if it's correct.
@timtag1190
Some data is loaded at the start (get startup data) when you log in. It depends on what tab you have selected in the game (neighbours, guild members, friends) and all the missing players get loaded after that.
You can see the number of loaded players in the info tab (Number of neighbours, guild members, friends).