Using the PCXT it doesn't matter what I select as an .img for Floppy B the emulation behaves as if it's the identical disk as drive A.
core is PCXT_20230902.rbf
Floppy B Problem
Re: Floppy B Problem
I got this to happen in MAME, too. If you have the FDC:0 set to 525dd and you set FDC:1 to [empty slot] it does exactly this.
So maybe there needs to be a way to select the type of floppy drive in the settings to force the B drive into being a separate device and not a clone of A.