Missing files/folders

[shinyblue]

locate mydir | wc -l shows 96 files/folders with mydir in the path. i.e. the folder exists!
tracker-search mydir returns no results, as does the GUI, tracker-needle.
tracker-search --folders=mydir starts returning everything and then gives up saying "Limit was reached".

The mydir in question is in an indexed folder (tracker-info on mydir's parents returns result). tracker-preferences moans that there's some duplication:

Tracker-DEBUG: tracker-preferences.vala:830: Directory '/home/r' duplicated in XDG dir 1
Tracker-DEBUG: tracker-preferences.vala:830: Directory '/home/r' duplicated in XDG dir 6

Screenshot attached. Nb. mydir is in Dropbox which is specifically listed in the folders to index (and recurse).

Tracker is running - see below.

$ tracker-control
Found 162 PIDs…
Found process ID 2004 for 'tracker-store'
Found process ID 2018 for 'tracker-miner-fs'

Store:
11 Mar 2012, 08:46:31: ✓ Store - Idle

Miners:
11 Mar 2012, 08:46:31: ✓ File System - Idle
11 Mar 2012, 08:46:31: ✓ Applications - Idle
11 Mar 2012, 08:46:31: ✗ E-mails - Not running or is a disabled plugin

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: tracker 0.12.10-1
ProcVersionSignature: Ubuntu 3.2.0-18.28-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 1.94.1-0ubuntu1
Architecture: amd64
CheckboxSubmission: 1b338cfaff551fea83bf0c1f06969438
CheckboxSystem: d00f84de8a555815fa1c4660280da308
Date: Sun Mar 11 08:40:58 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
SourcePackage: tracker
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.