Dtube Troubleshooting

I've been trying to upload my videos to "DTUBE" everything runs smooth my video uploads with no problem but when I try uploading a thumbnail it says it's finished uploading but there is no image showing that it is done. Also the "step 2" keeps circling like it is still trying to upload. If anyone can give me a few tips on what to do I would greatly appreciate it. Thank you in advance:) #dtube #help #troubleshooting