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Debug paste link:

Description and relevant errors:

The names or IDs of the two packets USE_ITEM and BLOCK_PLACE seem to be swapped (see PacketType.java). When opening a Work bench for example a listener will detect USE_ITEM containing the payload of a BLOCK_PLACE packet. This is further supported by the Protocol Specification where it's visible, that the IDs don't seem to match up with the ones provided by ProtocolLib.

Yeah this has been a problem for a while, but it just kind of is what it is. Just keep that in mind when writing listeners for it.

Then at least it would be good if it would be noted somewhere. Had I known this prior I could have saved myself a lot of head scratching and hours of debugging. But thanks anyway!