Attempting to place a spyglass on an armor stand with Curious Armor Stands installed results in a crash that is impossible to recover from without editing the world to remove the armor stand, or removing Curious Armor Stands entirely (at the cost of removing any Curios placed onto the stand). Rejoining the world without doing so will crash you again.
Attempting to place a spyglass on an armor stand with Curious Armor Stands installed results in a crash that is impossible to recover from without editing the world to remove the armor stand, or removing Curious Armor Stands entirely (at the cost of removing any Curios placed onto the stand). Rejoining the world without doing so will crash you again.
Initially, I submitted this issue to the other project, however I was told this was an issue with Spyglass of Curios' rendering code, so I raised it here instead.
Running NeoForge 47.1.105 on Minecraft version 1.20.1, Curios API version 5.9.1, Curious Armor Stands version 5.1.0, Spyglass of Curios version 1.7.2.
Crash report