Materials pointing to missing image files

[Troy_Gates]

I have a project that takes about 15 minutes for the materials dialog to open. After viewing the journal for the project, it appears there are 3 materials that have an image associated with them that no longer exist. Is there a way to search and find which materials these images are associated with so that they can be re-pathed or deleted? I don't want to browse through the 100's of materials in the material browser if possible.

Journal log entries for the missing images:

 Jrn.Command "Ribbon" , "Modify materials , ID_SETTINGS_MATERIALS"
 ' 0:< Unnecessary nesting;ArrowUI_4;-1;ID_SETTINGS_MATERIALS ;N++EB(NB); 
 ' 0:< Revit Graphics Information 
 ' 0:< 	Current Mode : DirectX Hardware 
 ' 0:< 	Use Hardware: ON 
 ' 0:< 	Use Overlays : ON 
 ' 0:< [00004828]DBG_INFO: Invalid path detected in file exists task: C:/Program Files (x86)/Common Files/Autodesk Shared/Materials/Textures/\Environments\SunAndSky\Presets\3\C:/Users/khalik/AppData/Local/Temp/MaterialThumbnails_PID_25fce0/8b095bb0c0cd1d30c0cce970c0cd1c10c0ccf810c0cce730c0cc78f0c0cd06b0c0cd2cf0c0ccfdb0Default (1).png: line 26 of Tasks\TaskFileExists.cpp. 
 ' 0:< ::107:: Delta VM: Avail -5 -> 134180775 MB, Used +2 -> 1967 MB; RAM: Avail -173 -> 6256 MB, Used +25 -> 1713 MB 
 ' 0:< GUI Resource Usage GDI: Avail 9012, Used 988, User: Used 534 
 ' 0:< Threaded version of fileExists is enabled. 65.343 seconds elapsed for threaded fileExists \\Ktgy-projects\2014\140704 North Beach Promenade\Color Selection\2016-07-18 Material Board\cottodeste_kerliteexedra_amadeus_m-300x300.jpg 
 ' 0:< ::107:: Delta VM: Avail -1 -> 134180774 MB, Used 1967 MB; RAM: Avail +227 -> 6483 MB, Used -150 -> 1563 MB 
 ' 0:< GUI Resource Usage GDI: Avail 9012, Used 988, User: Used 534 
 ' 0:< Threaded version of fileExists is enabled. 65.313 seconds elapsed for threaded fileExists \\Ktgy-projects\2014\140704 North Beach Promenade\Color Selection\2016-07-18 Material Board\River Rock.png 
 ' 0:< ::107:: Delta VM: Avail +1 -> 134180775 MB, Used +9 -> 1976 MB, Peak +9 -> 1978 MB; RAM: Avail +162 -> 6646 MB, Used -105 -> 1459 MB 
 ' 0:< GUI Resource Usage GDI: Avail 9012, Used 988, User: Used 534 
 'C 20-Mar-2017 16:14:15.506;   0:< ADialog::doModal start 
  ' 0:< ::107:: Delta VM: Avail -27 -> 134180748 MB, Used +23 -> 1999 MB, Peak +21 -> 1999 MB; RAM: Avail -52 -> 6595 MB, Used +30 -> 1490 MB 
  ' 0:< GUI Resource Usage GDI: Avail 9003, Used 997, User: Used 608 
  'E 20-Mar-2017 16:14:16.186;   0:< 

[L.Maas]

Use the paint tool in the project. Materials with missing images will show up with a warning symbol.