[xwiki-users] tagcloud and spaces macro trouble

Hi, I have trouble with the tagcloud and the spaces macro: Unknown macro: spaces The "spaces" macro is not in the list of registered macros ... Same for tagcloud. I have seen some similar issue in JIRA, but that was about the macros not working after an import. For me, these macros did work originally. At some point they stopped working. Unfortunately I can't remember having done anything suspiciuos. I have a XEM environment running, this is only happening in one wiki. (In the important one of course!) It originally occurred in 3.1, updating to 3.4 didn't make any difference. Any hints greatly appreciated! Cheers, Olaf