Maximum number of To Do Overs

Hi there,

is there a maximum of To Do Overs I can put into the database?
I use this Add On very extensively (over 60 to do overs) and I have the impression that tasks keep vanishing the more I put into the list. So maybe older ones fall out when I put new ones in?

Thanks in advance for your help!
Fallingshadows

[Kirska]

There should not be a limit, but it's possible that some API is limiting the number