Description
声明：我已经仔细看过 文档、FAQ、和搜索过已经关闭的 issues 后依然没有找到答案，所以才发了一个新的 issue。
问题类型
Bug Report
PicGo 的相关信息
PicGo 的版本：2.3.0-beta6
所在平台：Windows
问题重现
在使用typora中粘贴图片后自动上传到图床，PicGo每次都提示有前序任务，但其实没有上传任务，提示前序任务后等下又提示上传成功。
使用的插件为ssh-scp-uploader
截图和日志如下
2021-05-03 15:32:48 [PicGo INFO] [PicGo Server] get the request
2021-05-03 15:32:48 [PicGo INFO] [PicGo Server] upload files in list
2021-05-03 15:32:48 [PicGo INFO] Before transform
2021-05-03 15:32:48 [PicGo INFO] Transforming... Current transformer is [path]
2021-05-03 15:32:48 [PicGo INFO] [PicGo Server] get the request
2021-05-03 15:32:48 [PicGo INFO] [PicGo Server] upload files in list
2021-05-03 15:32:48 [PicGo WARN] [PicGo Server] upload failed, see picgo.log for more detail ↑
2021-05-03 15:32:48 [PicGo WARN] [PicGo Server] upload failed, see picgo.log for more detail ↑
2021-05-03 15:32:48 [PicGo INFO] Before upload
2021-05-03 15:32:48 [PicGo INFO] beforeUploadPlugins: renameFn running
2021-05-03 15:32:48 [PicGo INFO] Uploading... Current uploader is [ssh-scp-uploader]
2021-05-03 15:32:50 [PicGo SUCCESS]
https://xxxxxxxxxxxxxxx/uploads/2021/05/image-20210503153248908.png
