Hi Rodrigo,
I found one case reported for 10.5.1 with Precision Agent abut a year ago but the problem resolved itself so was not pursued.
I would suggest to create a support case so that Engineering can advise if you have the same problem as the KB article for 10.7. They may be able to provide a backported fix to 10.5.x if you don't want to upgrade to 10.7 SP2.
Please also mention this Community post link when you create the case.
(I know there are also some other CA Precision API related fixes in later 10.5.2 HotFixes for correlation)
Thanks,
Lynn