My "Who's Online" system module block suddenly disappeared.

All the permissions are right. The block was set for right column, top page. Changing to all pages, to different order rank, to left column, --nothing works. It disappeared for all users, even the Webmaster. This block has worked correctly for years in this site and others that I have.

I have made no big changes to explain this. The most recent install was probably CBB 3.07. I am running XOOPS 2.0.15.

Anyone else see this happen?

Have you any report from the different debug modes ?