I could not find any existing issue that contains any of the crashes mentioned here. However, all of the crash reports that you have provided are from a modded version of Minecraft. Please try to reproduce the crash in a vanilla (non-modded) version of Minecraft and attach that report or this may be dismissed as being caused by a mod. You can view all information known about this specific crash at MCX-1301.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-5520. You can view all information known about this specific crash at MCX-890.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-4283. You can view all information known about this specific crash at MCX-891.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-1192. You can view all information known about this specific crash at MCX-815.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-12949. You can view all information known about this specific crash at MCX-1039.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-12949. You can view all information known about this specific crash at MCX-1039.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-25477. You can view all information known about this specific crash at MCX-910.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-12949. You can view all information known about this specific crash at MCX-1039.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-12949. You can view all information known about this specific crash at MCX-1039.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-25178. You can view all information known about this specific crash at MCX-906.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-12949. You can view all information known about this specific crash at MCX-1039.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-28388. You can view all information known about this specific crash at MCX-897.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-9787. You can view all information known about this specific crash at MCX-854.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-297. You can view all information known about this specific crash at MCX-916.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-25975. You can view all information known about this specific crash at MCX-917.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-3766. You can view all information known about this specific crash at MCX-818.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-27442. You can view all information known about this specific crash at MCX-884.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-27864. You can view all information known about this specific crash at MCX-953.
Based on a crash report provided in this issue, I believe with high certainty that this report may be a duplicate of MC-16849. You can view all information known about this specific crash at MCX-877.
[Bot] Spam Golem
I could not find any existing issue that contains any of the crashes mentioned here. However, all of the crash reports that you have provided are from a modded version of Minecraft. Please try to reproduce the crash in a vanilla (non-modded) version of Minecraft and attach that report or this may be dismissed as being caused by a mod. You can view all information known about this specific crash at MCX-1301.