Can't hide text on hp bars

the site shows the options Hidden, the one that default, and a third one but immeadiately closes the selection box before anything is clickable. Iwant hp bars that do not say text on them but the site is making this impossible! Any help would be appreciated.

Does this happen in both supported browers (Chrome and Firefox)? Are there extensions that might interfere? (Try setting up a token in an incognito/private window.) Once you figure out what is causing the window to close, these settings are what I use for HP bars that the player can see but with text hidden: This particular user interface is once that I hope gets another look in the next redesign.