Sumping and the recall would be first on my list to check if I were the OP.... they could be serious problems....

Op's bike is kind of new for this possible cause, but if you lose your hydraulic clutch when hot, could be time to change out the clutch fluid.... if it absorbs too much water, the water can cause issues when it gets hot, and the clutch line usually runs along a portion of the exhaust header.....

Harley riders have recently been introduced to the need to change out brake fluid (re: the ABS module issues), the clutch uses the same fluid, in a very similar system...