Small XenApp 6 farm.
Same citrix policies on all servers.
One server will map the default printer listed when you connect via ICA, and also create a Citrix Universal Printer.
Other servers will map all printers, and for some people make a Universal as well.
Where could I check to see why this is happening? Tried several users and apps, and the behavior is the same. One server maps only 1, the rest map them all.