After about 30 minutes I caught the WASCE window with the following text at the bottom of it.
Server started.It didn't matter what model got opened. If the WASCE server was running and a model was opened it it crashed. I rolled back to yesterday, I removed almost all of my models and tried to use a simple test case to no avail.
Unrecoverable Stack Overflow: addr=7c90edde, ee=5f313e0, er=b052d18
JVMDG217: Dump Handler is Processing Signal 11 - Please Wait.
JVMDG303: JVM Requesting Java core file
Then I figured it had been about 3 months and there might be a fix pack for WPF. There it was version 18.104.22.168! Go get it NOW!
The bug that was causing the issue had to do with the Use Parent Profiling option:
Ref 32338 In the Imported Model builder, "Use Parent Profiling" causes a recursion errorParent profiling can now be used in the Imported Model builder without producing a Stack Overflow error.There are several more that look helpful as well, but if you are using Imported Models you need to have this fix.
Things appear to be back to normal. Let's hope for a better afternoon.