===Images can not be opened although I can see the according {{UBIK}} object (and thumbnails). Why? ===
The {{UBIKCLIENTUBIK Client}} synchronizes and displays objects delivered by the [[ACM]]. As a document in {{UBIK}} actually consists of two parts, the internal document object '''AND''' the physical file document, the system always delivers the internal document object to the client.
If it happens that the account configured for running the {{UBIK}} web service can not access the physical document, e.g. due to missing permissions, we find the following situation: