Crash report:
Error ServerMultiplayerManager.cpp:84: MultiplayerManager failed: "The mod Signal Display (1.5.1) caused a non-recoverable error.
Please report this error to the mod author.
Error while running event signal-display::on_nth_tick(2)
LuaEntity API call when LuaEntity was invalid.
stack traceback:
[C]: in function 'index'
__signal-display/scripts/events.lua:33: in function <signal-display/scripts/events.lua:9>"

When generating a new planet (see the warp drive machine mod), this crash occurred.

I haven’t played warp drive machine but is it the one where you have a platform that jumps between surfaces?

Did you have a display on your platform before a jump?

If so, I think my code doesn’t handle the Display moving surfaces well. I’ll try and push a fix soonish

Yes, I have a display with signal, when platform jumps

I've been able to replicate this crash.
Doesn't happen every time but will error when a display is deleted while processing.

I'll add additional safeguards and continue testing until I it seems stable.

Crash likely due to access field in display that is considered invalid.
Additional safeguards added in v1.5.2 that seem to fix.