Block Height Differences in insight

[haroldthompson]

We are running bitcore node with insight-api in livenet. After running the node for some time insight blockheight count falls behind when comparing it with bitpay's insight api /sync endpoint but syncPercentage is shows as 100. When we restart the node, it backs to normal. I really need for some advice about this problem.

This is our /sync response
"status": "finished", "blockChainHeight": 551379, "syncPercentage": 100, "height": 551379, "error": null, "type": "bitcore node" }

This is bitpay's

{ "status": "finished", "blockChainHeight": 551380, "syncPercentage": 100, "height": 551380, "error": null, "type": "bitcore node" }