ycwang-hello

#7

Hi, I encountered the same problem just now. I think the script `catalogue_merge.py` is killed by the system because it uses too much memory. Maybe someone could improve the code...

**Update**: After manually changing [""file:///C:\path\to\file"".jpg] to [""file:///C:/path/to/file"".jpg], I inserted some new files and did not change `\` to `/`, but "preview" still worked normally. So it seems that the bug...

This may be related to #174.