Hi, I noticed when I'm editing rounds after 23:00 CET (I'm not 100% sure) that days in calendar are "shifted", that is they don't align with date. Few times I added Thursday race on Friday by mistake. It seems to fix itself after I switch one month back and forth. I attached how it looks first time and after mentioned method.

Apparently, I can't set an off-site signup URL. Each time I set one and click on "update season", the link I just typed vanishes, and I get a required field warning.

Thank you for the report, I've fixed that now. I caused the bug when I reused the field for signup notification thread in a recent update.