Code Insight LSP not working most of the time

When adding a new unit to the project, and try to access variables or classes etc. from another unit, it wont list them when invoking with ctrl-space the code completion. Only after I exit and restart the ide. Switching to the old code completion, it works fine. So what is up with this new feature, praised by Embarcadero all over the net? Seems not to work as excepted.