Hello Chris,
This compose file is installing old versions of Workspace components.
Please replace the version numbers:
onlyoffice-community-server:
container_name: onlyoffice-community-server
image: onlyoffice/communityserver:12.5.2.1848
.....
onlyoffice-document-server:
container_name: onlyoffice-document-server
image: onlyoffice/documentserver-ee:7.5.1.1
.....
onlyoffice-control-panel:
container_name: onlyoffice-control-panel
image: onlyoffice/controlpanel:3.5.0.516
Re-deploy the Workspace and check the result.
Current versions can be found in our Dockerhub: Docker