I viewed the kingdom that the hit came from. I tried hitting tiles but couldn't. The only thing I found off was that they had ZERO Uber tiles being yielded, which is where all of our hits occurred. /Sigh

If the attack was within 30 minutes of end of kvk then reason probably is because towns stay in enemy kingdom for awhile after kvk.  If was more than an hour later could be a town "stuck" in enemy kingdom, which I have seen that before, and by the time you looked they were already in their own kingdom.  But I could possible not be fully informed and this is actually happening as you explained it, I am just offering what I have seen/experienced in game.

A guy from our enemy in KvK is hitting tiles in our kingdom over 10 hours after event ended.

Ok ... well this is not new but not a lot has been said about it ... as much information as can be given is important.  Can they do multiple hits over hours?  Have they been attacked themselves?  I do know that I have seen towns in wrong kingdom hours after event ended.  Oh and I am not plarium representative ... just putting my two cents in.

All attacks are from the same clan and it is NOT from KvK. All hits are occurring in Uber tiles

Are you saying the kingdom  of the clan that is hitting you are not from the kingdom your kvk was in battle against?

Yeah... It's been three different guys all from the same clan from k370... We fought 170 

My bad, sorry ..they are from KvK apparently...I sat this out due to clan change and forgot :/

ok ... well as I said I have seen towns from enemy kingdom sitting in our kingdom days after kvk ended ... so yes something is going on here and plarium needs to investigate it ... good that you have screenshots because they are going to want them.

And got to say AGAIN  there are a lot of loopholes that people find and take advantage of ...

Hi, it used to happen 1 year ago but once every 2 months in my old kd, but after this kvk there is a few kingdoms with red towns still there