Powered Gregtech World Accelerators of any tier set to Block Entity Mode next to a Heated Centrifuge get converted into said Centrifuge. So far I've encountered this Issue only with Centrifuges.

This also occurs with any other block entity that can change the block's state, for example:

• A world accelerator on an Iron Furnace will crash the game due to getting a nonexistent block state.
• A world accelerator on a vanilla furnace will copy the furnace onto itself, destroying the accelerator in the process.

See also GregTechCEu/GregTech-Modern#930.