All the hands should be there, make sure you have no filters on, make sure you have the correct Date range set and when you choose the session or stakes, change that it shows All hands not last 250. Maybe your session goes over midnight? You need to adjust for it if you are using Today or Yesterday or specific date range. Just click on settings and at the first General settings there is Time and set start of the day to what you want, like if you end your session at 4am set it to 6am or more just to be sure. (this time thing I think will only start to work for future hands, but I'm not sure)
I think all your hands are there, go and set up a filter for a specific hand and then look over them and you will probably find what you are looking for.