When players join, they SHOULD always start in the world "spawn". When NEW players join, they should start at the new player spawn (another location within the world "spawn").
Rather than this happening, ALL players are retaining their old location when they join, and NEW players start in the default survival world.

My server log file: http://pastebin.com/kypJuegM
My HomeSpawnPlus directory: https://www.dropbox.com/s/vkqtiwkwu7d84jh/HomeSpawnPlus.zip?dl=0

Never mind. I updated HomeSpawnPlus to beta2 and it fixed the problem. Thanks!