option batch on option confirm off option exclude "*.ncb" open tim@server put K:\Development\projects.* /backup/ftp/Test/* close exit
K:\Development\Projects.ncb | 0 KiB | 0.0 KiB/s | binary | 0% Can't open file 'K:\Development\Projects.ncb'. System Error. Code: 32. The process cannot access the file because it is being used by another process (A)bort, (R)etry, (S)kip, Ski(p) all: Abort
So, I think this is a kind-of bug.
But, I will now go and investigate if there's a work-round, but changing the option confirm to use skip. Or something.