I get the same thing right now with this minimal code:
a=find free ticker()
make ticker a, 1, 1
I'll try and work out why it's doing it.
No promises, but I'll see if I can get a fix out this weekend.
[EDIT]
The problem was due to some static initialisation code (if you don't know C++, then you needn't worry about it) - I've just moved the find bank, sysobj and ticker functions out of that plug-in into the bank, sysobj and ticker plug-ins and the problem has gone away. The bonus is that they now use my faster FIND FREE XXX code.