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Nelson Young 4Nelson Young 4 

winter 18 issue trailhead

Is anybody else getting this error launching their playground, since the winter 18 update?

Unfortunately, there was a problem. Please try again. If the problem continues, get in touch with your administrator with the error ID shown here and any other related details. Error ID: 977679174-13540 (1544100209)

Also, notice some of my styles on my components aren't working any more, back to the default lightning css.
Rahul KumarRahul Kumar (Salesforce Developers) 
Hi Nelson,

May I suggest you please refer the below link for reference. Hope it will be helpful.

Thanks
Rahul Kumar