Second, the platform server is abroad, which is caused by the interruption of network communication. (This kind of problem is generally the poor strength of the platform broker, or the black platform. The server you are using is unstable, so it is recommended to replace it. )
Third, I haven't logged in for a while, and some of the data I read after logging in for the first time is incomplete or lost. Just refresh it.
Fourth, the normal gap. If other platforms are continuous and complete, then this reason can be ignored.
Fifth, software problems, or problems with your computer. Reinstall MT4, if not, modify the firewall settings. If not, please reinstall the system.