"We offer new support options and therefor the forums are now in read-only mode! Please check out our Support Center for more information." - Vuforia Engine Team

iOS 10.2.1 + Vuforia SDK v6.2.6 EXC_BAD_ACCESS

I am running the book example with Vuforia SDK v6.2.6 in iOS 10.2.1 device.  Sometimes EXC_BAD_ACCESS (code=1) occurs at AppRenderer.mm line 148 : for (int viewIdx = 0; viewIdx < viewList.getNumViews(); viewIdx++) { when app start.

May i know how to fix this issue.

I think your APP's first viewController will initAR,'resumeAR' will perform twice.And it may result in crash.