Can't delete a file in /data when in root mode:

[tuxayo]

I get a toast "media/0/download/foo.txt is not existing"

It seems that the path is missing the prefix /data

Logs

09-22 20:25:17.081  4211  4211 D DiskUsage: Deletion requested for media/0/Download/OsmAnd-nightly.apk

Context

• Android 7.1.2 (LineageOS 14.1 for microG)
• version 3.8.0
• Phone: Nexus 5

Workaround

For things that are in the internal storage (so no need to use root and go to /data) just select "Storage card" to access them.