Hi ReelScene,
the light addon should store up to the most recent 1000 results, so if you are only seeing 10 then this is not intended behavior.
I can only think of two possibilities that could cause this.
The first is that either one of your quiz takers (assuming they were logged in) has a special character in their name, or otherwise the quiz name itself has a special character. This could (but shouldn’t) cause corruption in the records.
The second and more likely reason is that you have some security plugin installed (or something similar) that is blocking the results from being saved altogether. If this is the case, you could probably check out the security logs and white list the calls.
If you need more assistance please contact me from the contact form at harmonicdesign.ca as I may need to ask you things about your setup that should not be posted on a public forum (for example, if you ARE using a security plugin, do not post any of those logs here!).