What is this .bstshutdown_sync file and strange device appearing instead of a 3d model i uploaded...

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So I am on prisma 3d and uploaded a .glb file. Then i see this wierd device that i swear wasnt there five seconds ago when i hadn't uploaded the model. Idk where to upload the 3d model from the file opener. so can someone please help me with opening the file and explain what this device and file is? I asked google and i dont think theres much about this file type image 1 shows the device name and icon. Image 2 shows what files the device has. Image 3 shows the file name since i kinda just clicked on it to upload to prisma 3d because idk. Image 4 shows the file i uploaded to bluestacks in the media manager thingy. uhh im on windows and 5.22.68.1001 p64 (if thats the blue stacks version number idrk)   submitted by   /u/GamerEeveeInfinity   to   r/BlueStacks [link]   [comments]