debug not stopping at deferred breakpoint

[allen]

Using SlickEdit 2012 (v17.0.3.0 64-bit)

In debug mode (Java) when setting a breakpoint on a class used in a thread under examination I receive the following message.
class <class name> is not loaded setting deferred breakpoint

However, while the code is eventually executed, it doesn't stop at the breakpoint.

Any ideas?