When i'm deleting users from MongoDB manually, the number of users on the channel remains the same

  • Version of Rocket.Chat Server: 0.69.1
  • Operating System: Debian 8
  • Deployment Method: tar
  • Number of Running Instances: 1
  • DB Replicaset Oplog: -
  • NodeJS Version: 8.11.3 - x64
  • MongoDB Version: 3.2.21

I needed to remove several users from the RocketChat manually, i.e. not using the RC capabilities. In MondoDB I found these users, their direct messages and deleted them. There are no users anymore, there are no direct messages, everything is ok. But in the channel users list there is an incorrect number of users. That is, users 12 (plus switched off “rocket.cat”, but shown are 16 (as it was before, before removal).
How to fix this?

This is the number of users in the settings:
2018 09 11-12-39-55

This is the number of users in the channel userlist:
2018 09 11-12-40-46