Possible Bug more then 2Mill Leads

[Polareious]

I've been running a cluster (1web/1db/1ast) for awhile now and it was running fine. For the last month I have noticed that new lists I put in (mind you not every single one) only calls a handful of leads out of hundreds of thousands and no matter what I do I cannot get these new lists to run. I have deleted lists, add a diff list # then the orig list, cleaned every file to make sure every little possible weird character is not in there and still nothing. We have nearly 2 million leads, each cluster server is a dual xenon 24 core w/ 64GB of ram minimum per bock, all running on a fastiron switch w/ mikortik core cloud router in front.
Build
VERSION: 2.14-661a
BUILD: 180222-0017

any idea on what the hell this is?

[Polareious]

I have posted in the support section as well:
http://forum.eflo.net/VICIDIALforum/viewtopic.php?f=4&t=38620&sid=9023a8619626d7e0a722b930270fc52c

[mflorell]

Probably a configuration issue, we have clients with millions more leads than that with no issues.