Problem With Route Creation

Hi Sami,

I'm playing as Zhanair in the Age of Flight and trying to create a route from Tashkent to Riga.  I have IL18's available, but the system says I have no suitable aircraft and, weirdly, offers me aircraft I don't have (and which don't have the range). As its near the range limit of the IL18, I've tried it with a tech stop, but same result - the system just doesn't seem to know I have IL18's available. Can you help? Screenshot below.

Thanks

Mike