Found the following HTML validation problems:
FileCache.html:652:1 (FileCache.Rd:416): Warning: missing </ul> before </div>
FileCache.html:255:1 (FileCache.Rd:179): Warning: <h5> anchor "Usage" already defined
FileCache.html:261:1 (FileCache.Rd:183): Warning: <h5> anchor "Arguments" already defined
FileCache.html:298:1 (FileCache.Rd:206): Warning: <h5> anchor "Usage" already defined
FileCache.html:304:1 (FileCache.Rd:210): Warning: <h5> anchor "Arguments" already defined
FileCache.html:321:1 (FileCache.Rd:221): Warning: <h5> anchor "Returns" already defined
FileCache.html:340:1 (FileCache.Rd:232): Warning: <h5> anchor "Usage" already defined
FileCache.html:346:1 (FileCache.Rd:236): Warning: <h5> anchor "Arguments" already defined
FileCache.html:361:1 (FileCache.Rd:245): Warning: <h5> anchor "Returns" already defined
FileCache.html:380:1 (FileCache.Rd:256): Warning: <h5> anchor "Usage" already defined
FileCache.html:386:1 (FileCache.Rd:260): Warning: <h5> anchor "Arguments" already defined
FileCache.html:403:1 (FileCache.Rd:271): Warning: <h5> anchor "Returns" already defined
FileCache.html:421:1 (FileCache.Rd:281): Warning: <h5> anchor "Usage" already defined
FileCache.html:427:1 (FileCache.Rd:285): Warning: <h5> anchor "Arguments" already defined
FileCache.html:440:1 (FileCache.Rd:292): Warning: <h5> anchor "Returns" already defined
FileCache.html:457:1 (FileCache.Rd:301): Warning: <h5> anchor "Usage" already defined
FileCache.html:463:1 (FileCache.Rd:305): Warning: <h5> anchor "Returns" already defined
FileCache.html:480:1 (FileCache.Rd:314): Warning: <h5> anchor "Usage" already defined
FileCache.html:486:1 (FileCache.Rd:318): Warning: <h5> anchor "Arguments" already defined
FileCache.html:499:1 (FileCache.Rd:325): Warning: <h5> anchor "Returns" already defined
FileCache.html:517:1 (FileCache.Rd:335): Warning: <h5> anchor "Usage" already defined
FileCache.html:533:1 (FileCache.Rd:345): Warning: <h5> anchor "Usage" already defined
FileCache.html:550:1 (FileCache.Rd:356): Warning: <h5> anchor "Usage" already defined
FileCache.html:566:1 (FileCache.Rd:366): Warning: <h5> anchor "Usage" already defined
FileCache.html:583:1 (FileCache.Rd:377): Warning: <h5> anchor "Usage" already defined
FileCache.html:599:1 (FileCache.Rd:387): Warning: <h5> anchor "Usage" already defined
FileCache.html:605:1 (FileCache.Rd:391): Warning: <h5> anchor "Arguments" already defined
FileCache.html:629:1 (FileCache.Rd:405): Warning: <h5> anchor "Usage" already defined
FileCache.html:635:1 (FileCache.Rd:409): Warning: <h5> anchor "Arguments" already defined
sass_cache_options.html:50:1 (sass_cache_options.Rd:12): Warning: missing </ul> before </div>
write_file_attachments.html:50:1 (write_file_attachments.Rd:12): Warning: missing </ul> before </div>