To replicate:- Open the ST Micro "DFU File Manager" app to construct a 'multi-image' *.dfu file. (This file is useful to flash S1, S2 and app of our device in one operation.
- Assemble the multi-image from several *.bin files.
- Click generate.
- App will allow user to locate where on the disk the output image should go.
- App will always store the output image in its own directory (not in folder user picked)
Bug is located in CDfuFileMgrDlg::