Server Patch Bug?

I opened league to Oceana server. I changed it to NA server. Oceana was patching 6.4. I restarted league to NA server. League patched 6.4. I played 3-5 games. League shut down. League patched. Mine was already patched. I started to login screen. It said "patch xx.xx.xx.xx is rejected by server".

I restarted league again. And it's patching again.

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