Lipo-Orders from Switzerland - Unable to ship due to size/weight

Hello

I usualy make mixed orders (Lipo's & Hobby Parts) an let it send by Fedex to Swizerland. This because Fedex is the best choice for orders to Switzerland. It takes only 4-5 business days till the packet arrives.
All other shipping methods take at least 14 days (including EMS) and generate always proplems with the Swiss Post Service.

Now, my problem is, since august I am no more able to select Fedex for mixed orders (includinc Lipo's). It is always displayed "Unable to ship this parcel to your country due to size/weight". But wether size nor lenght/total lenght is exeeded.

HK, Please tell me, whats your problem?
I'd like to place mixed Orders and like Fedex as shipping method.

Best regards
Tom