Is there any way to solve the problem when you add a new unit to a project and LSP Code Completion doesn't recognize the new functions/procedures? Sometimes I have to close and reopen the IDE for it to recognize them.
I have a project with more than 300 units, and sometimes it doesn't recognize uses that I add, and I try to use functions or procedures. It only works if I close the IDE.
I don't have such problems in Delphi 10.3.
If you are referring to a brand new unit that does not yet exist on disk, then that is a known limitation of Code Completion. Once the unit has been saved to disk, then it should work as expected.
I believe this was stated in the launch webinar by David Millington and is referenced in the "Items to be aware of" section of a RAD Studio 11 wiki page. https://github.com/ideasawakened/DelphiKB/wiki/D28.ALEXANDRIA.11.1.0.0