Errors generating thumbnails

[christaylor3d]

Win10, Houdini Apprentice 19.0.498
Image Magick 7.1.0-61 Q16-HDRI x64 (latest version) (ticked install developerment headers and libraries for C and C++)

Houdini_Image_Browser.json is edited to "HOUDINI_IMAGE_BROWSER": "C:/Houdini_Image_Browser-master", it seems to load up fine except for the missing Image Magick error, which disappeared after setting the environment variable MAGICK_HOME, the tree can be navigated, you can right click and copy the selected image to COPs or view in explorer, but all the thumbnails are all black. C:/source_images contains 1 image which is below, and the errors are generated when clicking on the source_images folder in the tree view.

Traceback (most recent call last):
  File "C:/Houdini_Image_Browser-master/scripts/python\Houdini_Image_Browser\HImageThreaded.py", line 73, in run
    result = self.fn(self.path)
  File "C:/Houdini_Image_Browser-master/scripts/python\Houdini_Image_Browser\HImageThreaded.py", line 493, in generateThumbnail
    with Image(filename=filepath) as img:
  File "C:/Houdini_Image_Browser-master/python3.7libs\wand\image.py", line 9090, in __init__
    wand = library.NewMagickWand()
OSError: exception: access violation writing 0x0000000000000008
Traceback (most recent call last):
  File "C:/Houdini_Image_Browser-master/scripts/python\Houdini_Image_Browser\HImageThreaded.py", line 81, in run
    self.signals.finished.emit(result, self.idx)
UnboundLocalError: local variable 'result' referenced before assignment