Using various 3.6.x Taylor builds for OSX, and various downloads of Transcend (with or without patch files), I consistently get the following error while trying to load Transcend mission #4:
Error: Unrecognized operator.
In sexpression: ( when
( has-arrived-delay 0 "Capricorn" )
( send-message-list
"Omicron 2"
"High"
"Omicron2_3"
0
"Omicron 1"
File: /code/mission/missionparse.cpp
Line 5313
BTW, the following lines are:
"High"
"Omicron_4"
5000
which is where I think the problem occurs. Omicron_4 is a ship reference, but should be a message reference (e.g. Omicron_4_1). However, lacking Fred for OSX I am unable to repair the problem. Manually editing the VP results in other mysterious errors, presumably I'm screwing up a length counter or offset pointer.