During a multiplayer session, our host saved and quitted while I was ziplining. When the server was back up and I rejoined, I was no longer on a zipline but my character has no collisions and I'm unable to start another zipline, getting the message "That pole isn't connected to anything" no matter what.

Potentially related, I tried to use the programmable trolley and got this error:

The mod Renai Transportation (1.2.8) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event RenaiTransportation::on_gui_click (ID 1)
Unknown entity name: characterRTGhostRTGhost
stack traceback:
[C]: in function 'create_entity'
RenaiTransportation/script/MiscFunctions.lua:23: in function 'SwapToGhost'
RenaiTransportation/script/MiscFunctions.lua:315: in function 'GetOnZipline'
RenaiTransportation/script/event/ClickGUI.lua:63: in function '?'
RenaiTransportation/script/event/ClickGUI.lua:229: in function <RenaiTransportation/script/event/ClickGUI.lua:225>