When compiling for generated code you must specify 32 or 64-bit. Visual COBOL is bit-specific and does not support cross-bit generation.
ccbl is sensitive to the current COBMODE setting. There are also the ccbl32 and ccbl64 commands, which generate 32 or 64-bit code respectively. This is all analogous to cob.
To produce bit-specific code, use ccbl from either a 32-bit or 64-bit command prompt.