Cannot import HttpCtrl.Server and HttpCtrl.Json in the same file

Quite possibly not a HttpCtrl bug as such and be related to Pycharm, but just raising it in the unlikely case it is :)

I've started to use HttpCtrl 0.3.1 and I have a robot file in which I want to use both HttpCtrl.Server and HttpCtrl.Json. I added the following:

*** Settings ***
Library HttpCtrl.Server
Library HttpCtrl.Json

When I include both as above the "Get Json Value From String" is not found. If I reverse the Library order then the HttpCtrl.Server statements are not found. Pycharm does not underline either of the Library imports.

OS: Linux Ubuntu
Python 3.9
PyCharm 2022.3.3 (Community Edition)

Any ideas?