Still struggling wit this.
Here some log data:
Nov 3 01:03:40 collabd[2252]: [CSQuickLookService.m:300 533e000 +0ms] Called generateQuicklookIfNeededForFileEntityGUID (d1f35a13-1dee-4801-a01a-c69001231e66)
Nov 3 01:03:40 collabd[2252]: [CSQuickLookService.m:322 533e000 +0ms] Already tried to quicklook (result = 1), bail
Nov 3 01:05:31 server com.apple.launchd[1] (com.apple.qtkitserver[17130]): Could not terminate job: 3: No such process
Nov 3 01:05:31 server com.apple.launchd[1] (com.apple.qtkitserver[17130]): Using fallback option to terminate job...
Nov 3 01:05:31 collabql[17139]: ImageIO: CGImageSourceCreateWithData data parameter is nil
Nov 3 01:05:31 server com.apple.launchd[1] (com.apple.qtkitserver[17140]): Could not terminate job: 3: No such process
Nov 3 01:05:31 server com.apple.launchd[1] (com.apple.qtkitserver[17140]): Using fallback option to terminate job...
Nov 3 01:05:32 collabd[2252]: [CSQuickLookService.m:300 451b000 +0ms] Called generateQuicklookIfNeededForFileEntityGUID (e818766c-1534-45e2-8bdd-0810f4524175)
Nov 3 01:05:32 collabd[2252]: [CSQuickLookService.m:322 451b000 +0ms] Already tried to quicklook (result = 1), bail
This goes beyond my level of knowledge. What's going on?