After I restart my single player world import and export buses stop working. I have to remove the cables leading to them and then re-place them to fix the issue.
That is especially a problem with the advanced alchemical furnice, since it will fill up with items, which will eventually despawn.

0.8.10.5

The upcoming update may fix these issues as a massive under-the-hood overhaul is in the works.
After 0.8.10.6 is released please let me know if these issues continue.

As for the advanced alchemical furnace, see #207