unknown affect being checked

[Kregor]

I've started getting this error message on the latest revision of tangledtrees.are:

Log: [*****] BUG: Unknown affect being checked, Room #103623.

This room is a water room, where have a prog to insert a random chance to slip and fall on the river rocks, which up to now, has worked, and as far as I know, I have made no mods on this prog:

Code: Select all

>intercept_prog north~
if ismounted($n)
or isaffected($n) == Levitate
or isaffected($n) == Fly
  mpunintercept
else
  if dex($n) > 15
    mpunintercept
  else
    if rand(5)
      mpforce $n smote slips on the mossy stones and falls into the shallow stream.
      mpforce $n sit
      mpechoat $n Your butt is soaking wet!
    else
      mpunintercept
    endif
  endif
endif

*repeats for south, east, and west*

When I enter the room, and try to leave, I get the error log, and cannot move. Any insight? Both afftects it checks for should be legitimate spells.

[Dalvyn]

Try with flying intead of fly.