Janitors not cleaning toilets

I have just started playing planet coaster 2 and only on A shore thing and I cannot work out why Janitors aren't cleaning the toilets. I have played planet coaster 1 and I never had this issue. I feel like I am missing something with the roaster or something.

I have just started playing planet coaster 2 and only on A shore thing and I cannot work out why Janitors aren't cleaning the toilets. I have played planet coaster 1 and I never had this issue. I feel like I am missing something with the roaster or something.