ThingWorx crashing due to JS code

We're running ThingWorx 8.2.2 and it's crashing due to JS code on data event. I logged a case but I see it did not go through (also it has a 1200 character limit).

What happens is that seemingly trivial JS code puts ThingWorx into a "poison message" mode where the following stack trace is repeated continuously until the server runs out of space. I consider this a TW bug. It does not seem to be related to whether the JS code is valid or not (we let our developers work on TW and play around with it, so I don't expect TW to "crash" regardless of whether that code is valid or not).

java.util.concurrent.RejectedExecutionException: Task com.thingworx.system.subsystems.eventprocessing.EventInstance@63e9304 rejected from com.thingworx.common.utils.MonitoredThreadPoolExecutor@a38e4d6[Running, pool size = 500, active threads = 500, queued tasks = 200000, completed tasks = 1226032]
 at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063)
 at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830)
 at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1379)
 at com.thingworx.system.subsystems.eventprocessing.EventRouter.dispatchEvent(EventRouter.java:122)
 at com.thingworx.store.subscription.impl.SubscriptionStoreInMemoryThreadSafe.fireEventByDescriptors(SubscriptionStoreInMemoryThreadSafe.java:222)
 at com.thingworx.store.subscription.impl.SubscriptionStoreInMemoryThreadSafe.fireEvent(SubscriptionStoreInMemoryThreadSafe.java:187)
 at com.thingworx.things.Thing.dispatchEvent(Thing.java:7464)
 at com.thingworx.things.Thing.rawSetPropertyVTQ(Thing.java:4028)
 at com.thingworx.things.Thing.rawSetPropertyVTQ(Thing.java:3872)
 at com.thingworx.things.Thing.handleSetPropertyWithUpdate(Thing.java:4113)
 at com.thingworx.things.Thing.internalSetPropertyVTQ(Thing.java:4106)
 at com.thingworx.things.Thing.setPropertyVTQ(Thing.java:4230)
 at com.thingworx.things.Thing.setPropertyValue(Thing.java:4155)
 at com.thingworx.dsl.engine.adapters.ThingworxEntityAdapter.put(ThingworxEntityAdapter.java:296)
 at org.mozilla.javascript.ScriptableObject.putProperty(ScriptableObject.java:2347)
 at org.mozilla.javascript.ScriptRuntime.setObjectProp(ScriptRuntime.java:1598)
 at org.mozilla.javascript.ScriptRuntime.setObjectProp(ScriptRuntime.java:1592)
 at org.mozilla.javascript.gen.Event_AnyDataChange_2._c_script_0(Event.AnyDataChange:27)
 at org.mozilla.javascript.gen.Event_AnyDataChange_2.call(Event.AnyDataChange)
 at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
 at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3090)
 at org.mozilla.javascript.gen.Event_AnyDataChange_2.call(Event.AnyDataChange)
 at org.mozilla.javascript.gen.Event_AnyDataChange_2.exec(Event.AnyDataChange)
 at com.thingworx.dsl.engine.DSLProcessor.executeService(DSLProcessor.java:168)
 at com.thingworx.dsl.DSLServiceHandler.processService(DSLServiceHandler.java:38)
 at com.thingworx.things.Thing.handleEvent(Thing.java:7613)
 at com.thingworx.things.Thing.processEvent(Thing.java:7549)
 at com.thingworx.system.subsystems.eventprocessing.EventInstance.run(EventInstance.java:61)
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
 at java.lang.Thread.run(Thread.java:748)

The on data event for a property follows:

var date1 = new Date();
me.EndDate = date1;
var date2 = me.StartDate;

Day = (dateDifference(date1,date2))/86400000;
me.Days = 20 - Day;

var date3 = new Date();
me.EndDateSeal = date3;
var date4 = me.StartDateSeal;

DaySeal = (dateDifference(date3,date4))/86400000;
me.DaysSeal = 10 - DaySeal;

var date5 = new Date();
me.EndDateImpeller = date5;
var date6 = me.StartDateImpeller;
DayImpeller = (dateDifference(date5,date6))/86400000;
me.DaysImpeller = 100 - DayImpeller;