TapFly mode telling me I'm not high enough to invoke this mode. 90 meters high !!!

[Downunder]

Was playing with Tapfly on the weekend and I was 90 meters above takeoff altitude. Pressed Tapfly and got a message saying my altitude was too low to do this.
Ideas?

 

[stratos]

what about the sky conditions?
cloudy?
murky?
sunny?

Havent heard this happen before buddy