Crash in LDEventTrackingContext: Unrecognized Selector (v3.0.0)

[JUSTINMKAUFMAN]

Is this a support request?
Yes.

Describe the bug
We have experienced several crashes on iOS over the last week on release v3.0.0 of the SDK.

It is not clear whether they are all related, however I am attaching the details we have here from our logs for all 3 crash types below.

To reproduce
I have observed the first type of crash (see 1 below) running on simulator, but have been unable to establish consistent steps for reproducing it. Possibly a race condition?

Expected behavior
Not to crash...

Logs

1. NSInvalidArgumentException | -[LDEventTrackingContext objectForKeyedSubscript:]: unrecognized selector sent to instance

2. isEqual: | featuresJsonDictionary | count | flagValueForFlagKey: | containsFlagKey: | addObject: | countByEnumeratingWithState:objects:count:

3. addObject: | count | featuresJsonDictionary | countByEnumeratingWithState:objects:count: | containsFlagKey: | flagValueForFlagKey: | isEqual:

SDK version
v3.0.0

Language version, developer tools
Swift 5.0.1

OS/platform
iOS 12.2

Additional context
N/A

[bwoskow-ld]

Hi Justin,

Thanks for reaching out. We see that you've also filed a request with our support team. Let's consolidate our conversation onto that request.

Ben