creative plots

So I was working on this mansion I started building on my plot. The thing was.....I kept lagging around. Like I would place down a bunch of quartz blocks, then suddenly, I'd go back a few blocks and either the quartz would be gone, or it would remove the block below (annoying since I was using a...

So, I have mockingjay and I have not been on the server in a while and now I only have 22 plots, did they change the plot number mockingjay can have, because it shows my limit is only 22 when I go to claim more, and before I had 40, can someone please explain this to me. Is it because I havent...