Missing sales in /csn history

[SnipersEnd]

I've noticed in the past that if I go through my shop I'll find empty chests even though I check my /csn history often and stock up if I run out. At first I thought I was just missing this stuff but I just ran across a glitch where /csn history doesn't show entire pages of sales

https://www.youtube.com/watch?v=XR9Wa3BskQw&ab_channel=snipersEND

When I first logged in the end of /csn history 2 had cyan dye on it, and then once someone bought something it went off the page and I didn't have a /csn history 3. Then that person bought something else and the third page popped in completely full of stuff. This is on an SMP towny server, any ideas on what's going on?