I've reinstall A7.50 to ensure all files are updated,
assign the fx_bump action to my model in WED, the above
messages popup when run, then I use the following
action as you taught me last time :

action myBump()
{
my.skill41 = floatv(50);
my.skill42 = floatv(50);
fx_bump();
}

the above messages still exists, any ideas?