Whenever I ingest, only some of the thumbnails display in the resulting contact sheet. For example, I may be ingesting 40 photos, and sometimes 3 photos will show up in the contact sheet, and sometime 7 will show up, but on all occasions the majority of the thumbnails are not displayed. The info on the bottom bar of the contact sheet will indicate there are 3 or 7 images in the contact sheet, not 40. This not random behaviour, it happens every time I ingest, and this is after the confirmation box appears telling me the ingest is complete.
If I manually select the refresh menu item, all the photos will then show up. After some testing it appears this only happens if the ingest preference "open contact sheet during ingest" is selected. The other 2 options do not produce this result.
MacBook Pro 4,1
2 GB RAM
Leopard 10.4.6
PM 4.6 latest beta Feb 18