Argument "positioned" of execute command outputs error on Realm server

If the "positioned" argument of the execute command is used with other arguments, an error will occur and the command will not execute correctly.

Procedure to reproduce

1. Join a Realm server with cheats enabled.
2. Execute this command on the chat screen: /execute as @s positioned 53 44 -22 run say Test!
3. An error occurs. Syntax error: Unexpected "53": at "ositioned >>53<< 44 -22 ru"

Expected Results

The command executes successfully and "[GAMERTAG] Test!" should be sent to chat.