Problem with file paths when trying to convert blueprint to schematic

[Danymaddox]

Describe the bug
When trying to convert a Minecolonies blueprint to create schematic, nothing happens and an error shows in latest.log

To Reproduce
Steps to reproduce the behavior:

1. Create a local blueprint
2. Load that same blueprint in your build tool
3. Use the Schematic Workbench to transfer your blueprint form your build tool to an empty schematic from Create
4. Check latest log

Expected behavior
Blueprint is transfered to schematic

Versions (please complete the following information):

• Minecraft: [1.21.1]
• Minecolonies: [1.1.1383-1.21.1-snapshot]
• Structurize: [1.0.833-1.21.1-snapshot]
• Domun Ornamentum: [1.0.236-snapshot]
• CreateColonies [2.0.6]
• Create [6.0.10]

Additional context
Snippet with latest.log error: https://gitlab.com/-/snippets/6057992