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On one of Slowpoke's streams, they tried testing this bug and were unable to replicate it in the version of Advanced Machines they're using for the Mindcrack pack and onwards. It appears to be fixed.
I can't confirm the problem is fixed as I can't find anything myself but they knew how to cause the issue, if they couldn't replicate it on the stream then it's fixed. Basically, the issue only applied to objects getting into your advanced machines that it couldn't process but with some of those it still continued to try and process them and if the server (SSP or SMP) was stopped while processing the item then it caused the world to die. The only way to get it back was to remove those machines from your world via an editor or remove the mod.