Why Is Gremlin Not Allowed Even Though in allowedLanguages?

Question

Problem

Why is the Gremlin Language not allowed in OrientDB-Studio when I've set the parameter to allow?

I had this working before I recreated, but now when I follow the steps I still get denied Gremlin.
If you know what I'm doing wrong in my steps, or how I can ask the question better, Please let me know in the comments, so I can improve the Stack Overflow questions.

Reproduction

Repo Steps

1. Create an OrientDB Docker-container
2. Edit its /orientdb/config/orientdb-server-config.xml
   1. From: <parameter name="allowedLanguages" value="SQL"/>
   2. To: <parameter name="allowedLanguages" value="SQL,GREMLIN"/>
3. Startup this OrientDB container
4. Login to a OrientDB-database on OrientDB-Studio
5. Execute-and-Verify SELECT count(*) FROM `V` SQL-Command
6. Execute-and-Verify g.V().count() Gremlin-Command
7. Results
   1. Expected: g.V().count() would printout
   2. Actually: Error Toast-Message java.lang.IllegalArgumentException: Cannot find a script executor requester for language: gremlin

Tried

1. Deleting-and-recreating Docker-container
2. Restarting Docker-container (after editing-and-saving)
   1. This works for Neo4j's Docker-container to startup, due to startup procedure
3. Stopping-and-Starting Docker-container (after editing-and-saving)