Last week, I  lost 5 days of playtime because of this bug. I first joined the server about a year ago, which i played for a total of five hours among the days before i got bored. I recently rejoined the server, at first seeing the five hours of playtime there. However, a day or two afterward, they disappeared. I do not have a screenshot because i do not know how to find the screenshots on my desktop.

p.s. It is a Mac.