Issue with graph widgets after upgrading from 5.4 to 6.2

After upgrading from version 5.4 to version 6.2, there was a problem with graph widgets.
If the data element does not receive data, then in version 5.4 the graph was empty, after the data appeared again, the graph resumed. But now there is no such gap of emptiness, the graph falls to zero, and then connects to the next data point. Example: At the point marked in red, the data stopped flowing, and at the point marked in green, it resumed again, there should not be a graph between these points, but it fell to zero and connected to the next data point.