How to fix MTKView random fill color when rendering a new image - swift

Question

I'm working on a photo editor and I just switched from a UIImageView to an MTKView for performance reasons. It works great except for some reason on some images there is a red box. The image size changes and the red box gets bigger when displaying a new image.
I am using Mac Catalyst on this
This is my MTKView code
public let colorSpace = CGColorSpaceCreateDeviceRGB()
public lazy var commandQueue: MTLCommandQueue = {
[unowned self] in
if self.device == nil {
self.device = MTLCreateSystemDefaultDevice()
}
return self.device!.makeCommandQueue()!
}()
public lazy var ciContext: CIContext = {
[unowned self] in
if self.device == nil {
self.device = MTLCreateSystemDefaultDevice()
}
let context = CIContext(mtlDevice: self.device!, options: [CIContextOption.highQualityDownsample: true, CIContextOption.priorityRequestLow: false])
return context
}()
public override init(frame frameRect: CGRect, device: MTLDevice? = MTLCreateSystemDefaultDevice()) {
super.init(frame: frameRect,
device: device ?? MTLCreateSystemDefaultDevice())
if super.device == nil
{
fatalError("Device doesn't support Metal")
}
self.framebufferOnly = false
}
required public init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
self.framebufferOnly = false
self.device = MTLCreateSystemDefaultDevice()
}
/// The image to display
public var image: CIImage?
{
didSet
{
renderImage()
}
}
public var orientation: CGImagePropertyOrientation? {
didSet {
renderImage()
}
}
func renderImage()
{
guard var
image = self.image,
let targetTexture = self.currentDrawable?.texture else
{
print("No texture/image")
return
}
self.drawableSize = image.extent.size
if let orientation = orientation {
image = image.oriented(orientation)
}
let commandBuffer = self.commandQueue.makeCommandBuffer()
let bounds = CGRect(origin: CGPoint.zero, size: self.drawableSize)
let originX = image.extent.origin.x
let originY = image.extent.origin.y
let scaleX = self.drawableSize.width / image.extent.width
let scaleY = self.drawableSize.height / image.extent.height
let scale = min(scaleX, scaleY)
let scaledImage = image
.transformed(by: CGAffineTransform(translationX: -originX, y: -originY))
.transformed(by: CGAffineTransform(scaleX: scale, y: scale))
self.ciContext.render(scaledImage,
to: targetTexture,
commandBuffer: commandBuffer,
bounds: bounds,
colorSpace: self.colorSpace)
commandBuffer?.present(self.currentDrawable!)
commandBuffer?.commit()
self.draw()
self.releaseDrawables()
}