Before the current PBE patch, the yellow trinket would simply go on cooldown when you used it, with no ward being placed.
Now on the current patch it has caused my game to crash and is now unable to restart. It says the yellow trinket is missing. The same bug from the new Nasus skin's ult.
Post your PBE bug reports here: something not functioning as intended? Store is broken? A champion's ability is not working? etc
Need help? Read our [bug reporting guide](http://community.pbe.leagueoflegends.com/c/bugs/CF5EEDC8FF5AC1A896F517E2C7AE4650C472807F-how-to-report-bugs-on-the-pbe).
Comments about things you don't like or suggestions for improvements go in Feature Feedback.