{"action":"opened","issue":{"url":"https://api.github.com/repos/Minecolonies/minecolonies/issues/2330","repository_url":"https://api.github.com/repos/Minecolonies/minecolonies","labels_url":"https://api.github.com/repos/Minecolonies/minecolonies/issues/2330/labels{/name}","comments_url":"https://api.github.com/repos/Minecolonies/minecolonies/issues/2330/comments","events_url":"https://api.github.com/repos/Minecolonies/minecolonies/issues/2330/events","html_url":"https://github.com/Minecolonies/minecolonies/issues/2330","id":307306394,"number":2330,"title":"Custom hut upgrade crashes client to desktop","user":{"login":"BonaireDreams","id":5133282,"avatar_url":"https://avatars1.githubusercontent.com/u/5133282?v=4","gravatar_id":"","url":"https://api.github.com/users/BonaireDreams","html_url":"https://github.com/BonaireDreams","followers_url":"https://api.github.com/users/BonaireDreams/followers","following_url":"https://api.github.com/users/BonaireDreams/following{/other_user}","gists_url":"https://api.github.com/users/BonaireDreams/gists{/gist_id}","starred_url":"https://api.github.com/users/BonaireDreams/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/BonaireDreams/subscriptions","organizations_url":"https://api.github.com/users/BonaireDreams/orgs","repos_url":"https://api.github.com/users/BonaireDreams/repos","events_url":"https://api.github.com/users/BonaireDreams/events{/privacy}","received_events_url":"https://api.github.com/users/BonaireDreams/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-03-21T15:55:13Z","updated_at":"2018-03-21T15:55:13Z","closed_at":null,"author_association":"NONE","body":"### Minecolonies version\r\n\r\nversion 1.12.2-0.8.7855 also 0.8.7737\r\n\r\n### Expected behavior\r\n\r\n- Upgrade custom citizen hut to LVL 2\r\n\r\n### Actual behaviour\r\n\r\n- Client crashes to desktop, server is fine.\r\n\r\n### Steps to reproduce the problem\r\n\r\n1. Dedicated Server running Colonial Engineers\r\n2. Mod pack has some custom building schematics\r\n3. Built a T1 custom citizen hut, all 5 tiers are available to preview before placing\r\n4. When trying to upgrade to T2, client crashes to desktop after clicking Upgrade, right before the materials list is displayed.\r\n5. Minecolonies huts upgrade fine so I'm pretty sure its the custom hut but looking for some direction what could  be causing it and how I can fix it. Would it be an invalid block in the schematic?\r\n\r\n[crash-2018-03-20_22.14.13-client.txt](https://github.com/Minecolonies/minecolonies/files/1834044/crash-2018-03-20_22.14.13-client.txt)\r\n"}}
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