problem solved by anna, tws must be set to English language and no other language.

I installed TWS 963.3k and I updated with multicharts 11 build 15201, but the problem continues. Does anyone have any idea?

I use muticharts64 version 11.0 build 14943 connected to tws IB build 963.3j In the quotemanager I have already loaded 2 contracts NGZ7, NGZ8 . When I try to load a new nymex symbol (nymex only and not others) through data source, I return a series of errors and do not link me to the symbollist. Eve...