https://forums.autodesk.com/t5/fusion-design-validate-document/red-thumbnails/m-p/5913100#M284000 <P><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/115532">@chengyun.yang</a>: I haven't seen red icons on other environments then "Gray room" on my machine.</P><P>&nbsp;</P><P>Modellname: iMac</P><P>&nbsp; Modell-Identifizierung: iMac12,2</P><P>&nbsp; Prozessortyp: Intel Core i7</P><P>&nbsp; Prozessorgeschwindigkeit: 3,4 GHz</P><P>&nbsp; Anzahl der Prozessoren: 1</P><P>&nbsp; Gesamtanzahl der Kerne: 4</P><P>&nbsp; L2-Cache (pro Kern): 256 KB</P><P>&nbsp; L3-Cache: 8 MB</P><P>&nbsp; Speicher: 16 GB</P><P>&nbsp; Boot-ROM-Version: IM121.0047.B21</P><P>&nbsp; SMC-Version (System): 1.72f2</P> Wed, 18 Nov 2015 07:12:24 GMT macmanpb 2015-11-18T07:12:24Z