During the summer of 2009 there was some confusion when Traxx MS units that got the ATC standard livery, but also had service numbers from the Euro Cargo Rail batch (186 161-180). Bombardier did a switch here, in order to be able to have another five new units for Angel Trains Cargo ready before December 2009. The last five units for Euro Cargo Rail, 186 176-180, were completed as such from June 2009 on, but after completion repainted in ATC colours. They were renumbered as 186 346-350. Bombardier then built five new units for Euro Cargo Rail, again with the number 186 176-180 in October-December 2009.
The reason why Bombardier had to deliver five extra units to Angel Trains Cargo so fast is that B Cargo was planning on services from Belgium to France, starting in December 2009. By then the 186 346-350 were delivered and put into service as B Cargo 2901-2905.