PubNub.add(_:) - $specialized Set._Variant.update(with:)

[luisescamilla13]

We are getting a random crash when we call PubNub.add(_:)
It is not 100% reproducible

We have a class with this variable:
let listener: SubscriptionListener

We set the value of listener var in the init of the class:

init(keys: PubnubKeys, email: String) {
        // Setup PNConfiguration
        var configuration = PubNubConfiguration(publishKey: keys.publishKey, subscribeKey: keys.subscriptionKey, uuid: email)
        configuration.authKey = keys.token
        pubnub =  PubNub(configuration: configuration)
        listener = SubscriptionListener(queue: .main)
        pubnub.add(listener)
        ...

This is the stack trace from the crash report:

We are currently working with PubNub 6.0.3

[dterekhov]

Crashes for me as well, the same place.

[mjelzon]

We are also experiencing this issue, is there any update?