Since I bought and installed AES I am having sever problems with at least two Add-on aircraft. My idea was to use AES as weather engines with Direct Weather Injection and REX overdrive for the texture. The weather engine in REX is disabled. I am flying with FSX and online on VATSIM with FSInn. Weather update in FSInn is disabled.Shortly after beginning to taxi the aircrafts stops suddenly. To get the aircraft moving again I need at least 70% N1. On takeoff the acceleration is very slowly and I need the longest runway available. With some luck I am reaching Vr before the runway ends. In-flight, flying with auto throttle the Aircraft is sometimes accelerating into over speed and keeps accelerating. This behavior I have with the iFly NGX. With the Embraer 175/195 from feelthere I tested just the taxiing issue.After several test flights I can say that this has something to do with the AES. Before I used the Weather Engine from REX and never had any problems. I also deleted the FSUIPC.ini and started with a new one. The settings for FSUIPC and FSX are as described in the documentation. I am a bit frustrated and removed AES for the moment. Any help would be very much appreciated.Felix

Hello,It appears there is something wrong, obviously, and we'd need more information to find out what it is. Please contact our support department at support.hifitechinc.com (open a ticket) with any details you can provide including a session log. This is not a known issue.