In my case, it's for a Volume, but I guess it would be the same in the file manager of a normal app data.

Request:

PUT https://my.cloudron.url/api/v1/volumes/VOLUME_ID/files/directory%20with%20spaces/file.ext

{"action":"rename","newFilePath":"directory%20with%20spaces/new subdirectory with spaces/filename.ext"}

Response :

500
 { errno: -2, code: "ENOENT", syscall: "rename", path: "/app/data/VOLUME_ID/directory with spaces/filename.ext", dest: "/app/data/VOLUME_ID/directory%20with%20spaces/new subdirectory with spaces/filename.ext" }

I notice weird stuff with the spaces in the path. In the original path, it seems all spaces are actually spaces. But in the destination, up to the current directory it's with %20s, but the directory to which I'm trying to drag & drop my file correctly has spaces.

(I have tried to anonymize some stuff in my logs, so I may have made mistakes, but I tried to keep it coherent with what I saw)