Infinite GetContent() Calls in SGDEX ContentHandler for DetailsView

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I’m developing an application using SGDEX components and have successfully loaded content into a GridView. When a user selects an item, I switch to a DetailsView to show more information. I use a custom ContentHandler to fetch the details from my API.

My problem is that the GetContent() function in my ContentHandler is being called infinitely, leading to my Roku device crashing. The content loads correctly the first time, but the repeated calls eventually overload the device, and it crashes.

Any help or suggestions on how to resolve this would be greatly appreciated.

DetailsViewLogic.brs

function ShowDetailsView(rowContent as object, index as integer, isContentList = true as boolean) as object
    details = CreateObject("roSGNode", "DetailsView")

    content = CreateObject("roSGNode", "ContentNode")

    content.AddFields({
        HandlerConfigDetails: {
            name: "ContentHandlerDetail"
        },
        item: rowContent.GetChild(index)
        isContentLoaded: false
    })

    details.ObserveField("currentItem", "OnDetailsContentSet")
    details.ObserveField("buttonSelected", "OnButtonSelected")
    details.SetFields({
        content: content
        isContentList: true
        contentManagerType: "details"
    })

    m.top.ComponentController.CallFunc("show", {
        view: details
    })
    return details
end function

ContentHandlerDetail.brs

sub GetContent()
    print "ContentHandlerDetail.brs GetContent() was called"
    ' Redacted
    ' ...
end sub

Output from console

SGDEX: create new view: DetailsView
SGDEX: View Manager runProcedure addView
SGDEX: newView.setFocus(true)
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called
ContentHandlerDetail.brs GetContent() was called