Jitter HAP Playback Issues

Hello everyone,

I'm working on a Max project in which I'm playing back gigabytes-big HAP files at variable speeds. I'm having a strange issues:

• the video plays normally at the beginning, but by the end glitches out and stutters between what I think is the last/first frames of the video?

• the video doesn't seem to loop despite the looping attribute being on. it only ever plays all the way through once.

• the video seems to load only at patch load. whenever I try to replace the video with a different one, it doesn't seem to load.

I would ideally like to load potentially 50Gb-sized files, so it's imperative that I can make them loop correctly. If anyone has recommendations for order of operation + loading file into RAM somehow, I'd tremendously appreciate it. Attached is the patch I've been using to troubleshoot my issue.

Thank you so much!!

{
"boxes" : [ {
"box" : {
"maxclass" : "message",
"text" : "frame 0, bang",
"outlettype" : [ "" ],
"patching_rect" : [ 203.875, 173.9375, 83.0, 22.0 ],
"numinlets" : 2,
"id" : "obj-130",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "newobj",
"text" : "loadbang",
"outlettype" : [ "bang" ],
"patching_rect" : [ 90.875, 96.0, 58.0, 22.0 ],
"numinlets" : 1,
"id" : "obj-2",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "comment",
"text" : "video playback speed",
"patching_rect" : [ 184.4375, 96.0, 131.875, 20.0 ],
"numinlets" : 1,
"id" : "obj-16",
"numoutlets" : 0
}

}
, {
"box" : {
"maxclass" : "comment",
"text" : "2",
"patching_rect" : [ 154.25, 63.0, 25.0, 29.0 ],
"numinlets" : 1,
"textcolor" : [ 0.996078431372549, 0.0, 0.0, 1.0 ],
"id" : "obj-14",
"fontsize" : 20.0,
"numoutlets" : 0
}

}
, {
"box" : {
"maxclass" : "comment",
"text" : "1",
"patching_rect" : [ 359.375, 63.0, 25.0, 29.0 ],
"numinlets" : 1,
"textcolor" : [ 0.996078431372549, 0.0, 0.0, 1.0 ],
"id" : "obj-13",
"fontsize" : 20.0,
"numoutlets" : 0
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "30",
"outlettype" : [ "" ],
"patching_rect" : [ 208.875, 126.0, 29.5, 22.0 ],
"numinlets" : 2,
"id" : "obj-1",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "1",
"outlettype" : [ "" ],
"patching_rect" : [ 152.0, 96.0, 29.5, 22.0 ],
"numinlets" : 2,
"id" : "obj-6",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "stop",
"outlettype" : [ "" ],
"patching_rect" : [ 400.875, 94.0, 31.0, 22.0 ],
"numinlets" : 2,
"id" : "obj-12",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "start",
"outlettype" : [ "" ],
"patching_rect" : [ 355.875, 94.0, 32.0, 22.0 ],
"numinlets" : 2,
"id" : "obj-10",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "read",
"outlettype" : [ "" ],
"patching_rect" : [ 45.875, 160.9375, 33.0, 22.0 ],
"numinlets" : 2,
"id" : "obj-7",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "20",
"outlettype" : [ "" ],
"patching_rect" : [ 172.0, 126.0, 29.5, 22.0 ],
"numinlets" : 2,
"id" : "obj-5",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "10",
"outlettype" : [ "" ],
"patching_rect" : [ 137.0, 126.0, 29.5, 22.0 ],
"numinlets" : 2,
"id" : "obj-3",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "message",
"text" : "rate $1",
"outlettype" : [ "" ],
"patching_rect" : [ 150.875, 173.9375, 46.0, 22.0 ],
"numinlets" : 2,
"id" : "obj-62",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "newobj",
"text" : "loadbang",
"outlettype" : [ "bang" ],
"patching_rect" : [ 60.875, 248.9375, 58.0, 22.0 ],
"numinlets" : 1,
"id" : "obj-167",
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "toggle",
"outlettype" : [ "int" ],
"patching_rect" : [ 60.875, 278.9375, 24.0, 24.0 ],
"numinlets" : 1,
"id" : "obj-126",
"parameter_enable" : 0,
"numoutlets" : 1
}

}
, {
"box" : {
"maxclass" : "newobj",
"text" : "jit.world",
"outlettype" : [ "", "bang", "" ],
"patching_rect" : [ 45.875, 308.9375, 53.0, 22.0 ],
"numinlets" : 1,
"id" : "obj-127",
"numoutlets" : 3,
"frozen_object_attributes" : {
"rect" : [ 882, 45, 1522, 525 ]
}

}

}
, {
"box" : {
"maxclass" : "newobj",
"text" : "jit.movie @moviefile embodied-ice.avi @loop @vol 0 @engine viddll @output_texture 1",
"outlettype" : [ "jit_matrix", "" ],
"patching_rect" : [ 45.875, 218.9375, 473.0, 22.0 ],
"numinlets" : 1,
"id" : "obj-120",
"numoutlets" : 2
}

}
, {
"box" : {
"maxclass" : "panel",
"patching_rect" : [ 27.0, 36.0, 565.25, 305.9375 ],
"rounded" : 45,
"numinlets" : 1,
"background" : 1,
"id" : "obj-55",
"numoutlets" : 0,
"mode" : 0,
"angle" : 270.0,
"bgcolor" : [ 0.956862745098039, 0.823529411764706, 0.152941176470588, 0.5 ],
"proportion" : 0.5
}

}
 ],
"lines" : [ {
"patchline" : {
"source" : [ "obj-7", 0 ],
"destination" : [ "obj-120", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-62", 0 ],
"destination" : [ "obj-120", 0 ],
"midpoints" : [ 160.375, 213.96875, 55.375, 213.96875 ]
}

}
, {
"patchline" : {
"source" : [ "obj-6", 0 ],
"destination" : [ "obj-62", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-5", 0 ],
"destination" : [ "obj-62", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-3", 0 ],
"destination" : [ "obj-62", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-2", 0 ],
"destination" : [ "obj-6", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-167", 0 ],
"destination" : [ "obj-126", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-130", 0 ],
"destination" : [ "obj-120", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-126", 0 ],
"destination" : [ "obj-127", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-120", 0 ],
"destination" : [ "obj-127", 0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-12", 0 ],
"destination" : [ "obj-120", 0 ],
"midpoints" : [ 410.375, 212.0, 90.0, 212.0, 90.0, 204.0, 55.375, 204.0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-10", 0 ],
"destination" : [ "obj-120", 0 ],
"midpoints" : [ 365.375, 212.0, 90.0, 212.0, 90.0, 204.0, 55.375, 204.0 ]
}

}
, {
"patchline" : {
"source" : [ "obj-1", 0 ],
"destination" : [ "obj-62", 0 ]
}

}
 ],
"appversion" : {
"major" : 8,
"minor" : 1,
"revision" : 0,
"architecture" : "x64",
"modernui" : 1
}
,
"styles" : [ {
"name" : "AudioStatus_Menu",
"default" : {
"bgfillcolor" : {
"type" : "color",
"color" : [ 0.294118, 0.313726, 0.337255, 1 ],
"color1" : [ 0.454902, 0.462745, 0.482353, 0.0 ],
"color2" : [ 0.290196, 0.309804, 0.301961, 1.0 ],
"angle" : 270.0,
"proportion" : 0.39,
"autogradient" : 0
}

}
,
"parentstyle" : "",
"multi" : 0
}
 ],
"classnamespace" : "box"
}