So when I was making a map of California I put dark oak signs down to represent city locations. So then I got a map and looked at it to see what it looked like. The game instantly crashed. On the crash report, it explains that there is a dark_oak_sign that caused the crash. I then went to another world and placed a spruce sign and looked at the map and sure enough, it crashed. When you load the world again after it crashes, it briefly shows the map and crashes immediately.
Linked issues
duplicates 1
Comments 2
Thank you for your report!
We're actually already tracking this issue in MC-175218, so I resolved and linked this ticket as a duplicate.
However, that ticket has already been resolved as Fixed. The fix will arrive in the next version or is already included in the latest development version of the game.
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I just had this problem and immediately found the solution:
I loaded my map in a previous snapshot version (20w12a > 20w10a) and broke the sign
Right now I'll plan on keeping the world in the older version until the next snapshot comes out