Drivers switched to wrong tyres at the pitstop

http://igpmanager.com/play/?url=race-result/346380

Hello,
my two drivers (A Siebel and A Stämmler)  pitted both on lap 13. I changed the tyre in the pre-set strategy (from 'Hard' to 'Wet (Full)'). To make sure the stop will work properly I selected 'unscheduled pitstop', '56L' and 'Wet (Full)' THEN clicked 'Pit'.
However, in the pits my drivers swapped to hards at 100% track wetness. I had to pit again on lap 14 and my race was ruined.

How could that happen? It's really frustrating.

I've had the exact same thing happen to me, at first I tought it'd be my own fault, but I had it 2 times in a row :/

Unfortunately this crops up from time to time. We have not been able to find the cause yet, but it is something we will continue to work on

yeah these bugs are burried deep down the sim I think, that's why I didn't initially started a forum post because of it. 

It happened to me yesterday, only it was with my fuel. I Put in 54L At My pitstop and it only put in 50L 

My driver retired at the last corner.

Benjamin, I just looked at the data from that race & that isn't the problem you had. I will send you a pm