How to Stop "Spring Boot Language Server"?

Question

For STS 4

Spring Tool Suite 4 

Version: 4.19.1.RELEASE
Build Id: 202308011926
Revision: 0b848aa029fb3bb6bbcbc20e22469ed4dc0241f0

In the IDE itself Spring Boot Language Server is always running or doing something. Therefore in the bottom-right always appears the following:

Even if is opened the Progress view and Spring Boot Language Server is stopped manually it remains running

Even through:

• Preferences -> Language Servers

with the options available I couldn't find something to stop it

NOTE

It seems due this situation, rosen the following problem: it is not possible apply autocompletion - ctrl + space

Answer 1

So far the "workaround" is doing the following steps in the IDE according the cases:

Progress View
 Stop the "Spring Boot Language Server" to cancel

If it does not stop do:

Preferences
 Spring
  OpenRewrite
   Uncheck the "Reconciling of Java Sources" checkbox

Then again

Progress View
 Stop the "Spring Boot Language Server" to cancel

If it does not work, restart the IDE. I do this process in 2 Machines and work.

Special Case

Preferences
 Spring
   Uncheck the "Start Language Server at startup if Spring Boot is a dependency" checkbox