How to copy Task Flows between environments?

Hi,

so my challange is to copy Task Flows from one Environment into another (DEV to PROD).

Both are on same HFM Version 11.1.2.2.303, but are not in one Shared services repsitory. Deployments are installed in different network segments and are on different servers (same setup for DEV and Prod).

In the environments the clusters have different names (HFMDEV and HFMPROD), applications, too (XXXDEV and XXXPROD), but are identical in metadata, deployment, rules and security.

How can I copy Task Flows between them. I tried to export them via LCM and import them via LCM into the other environment. The appear in LCM but not in the Workspace.