Prerequisites

• I am running the latest alpha version of MineColonies and Structurize for my Minecraft version.
• I checked the MineColonies/Structurize wiki and made sure my issue is not covered there.
• I made sure that this issue is not a duplicate of any existing issue.

Context

• Minecraft Version: 1.15.2
• MineColonies Version: 0.13.347-BETA (occurs on 0.13.344-ALPHA & 0.13.341 ALPHA)
• Structurize Version: 0.13.94-ALPHA
• Forge Version: 31.2.45

Problem description

Crash on load existing world, applies to this specific world only. "The given compound holds an unknown output type for this Controller" displayed from launcher, appears to be related to colony manager/request system manager.
Full latest.log in the following dump: https://gist.github.com/xanthophyll/01116cb7d6be3b19df4655c1443a164d

Notes or related things

Please contact me on discord (archAng3l#0589) with requests for information or for solutions. I will append any additional information or solutions (prospective or actual) to this post in timestamped edits.

EDIT 13/10/20:
I believe it has something to do with the minecolonies "colonies" file (attached below). Transplanting the region/playerdata files into a freshly generated world circumvented the problem.
colonies.zip

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@xanthophyll can you try with the latest please and a) tell me if still happening and b) give us the log?