Is there a limit to how many tags can be defined in Splunk 6.3.1?

Hi, I have around 100 test units in Splunk. I started off with creating tags for them to describe and quickly categorize them. Eg. 1Camera, 2Camera, 3Camera and 4Camera. I first created these tags and they worked fine. 2Camera is the bulk of them, around 80 units. I am tagging them based on the Serial Number. Field Value pair is -> SerialNumber=abcd1234 Tag name is -> 2Camera Then carrying forward this concept, I created another category of tags with a different variable like Transport mode - Wireless or Cellular based on the same Serial Number. Field Value pair is -> SerialNumber=abcd1234 Tag name is -> Wireless In this, the original tags for 2Camera system "disappear" from the Splunk tags. I have re-created them more than 10 times, but they just disappear. I input the 80 units and they do not get updated in Splunk. I have also tried 10 at a time, but when I change the permissions so that everyone can see them, they disappear after around 20. I now have a very tough time re-creating the original tags for 2Camera systems. I am noticing that these tags disappear after say 20 of them have been re-created. 1. Is there a limit as to how many tags can be defined in Splunk? For some reason, I am thinking it is 20. I was not able to confirm it. 2. Is there a limit on how multiple tags can be defined in Splunk actively? Please help. Thanks a lot, Abhi