I have a ADF copying JSON data in blob storage to MongoDB. Works perfectly if I specify the exact filename in the input parameters but if I use or <space> or .json or anything it fails 100% of the time saying blob doesn't exist. Is this not supported ? Seems from the documentation it is, but I am possibly not using it as designed. See the file name changes every day so I need to pick up the file by some pattern. Any suggestions would be great.

