It's 86 masternodes. About 205 blocks are split between them. 205/86 = 2.38. I assume that one MN will receive 2 rewards per day. But for example B9dk5UzLjDu42V2TkrL1pMkFDLcFrPzzR4  it received one reward yesterday. That's all right? Can this be related to the watchman version (MN ver.103)? Well thank you.

You know where is the problem with pool?

I have the same problem. A few workers do not show up at the pool.