If created values are not updated, it can break the Easy Chart in Vision. My best guess is that Ignition uses those created/retired values as a way to cheat and determine which sqlt_data_ partitions they should be querying for the relevant tag data. If your Easy Chart date selection bridges over the created time for the tag, it will show everything up to the start of the relevant partition, but it will not show anything from prior partitions because it assumes, based on the created value that there is no data in the older partitions.
Here is an example. I have data for this particular tag going all the way back to 2020. All I did was change the created value to March 22nd, 2022 - nothing else changed. You can see that this drives the red highlighting in the bottom range, and the data stops at March 1st, 2022 because I have partitions set to monthly and it doesn't try to look at older partitions.
The only thing different in the screenshot below is that I changed the end date of the range to a time prior to March 22nd, 2022. It shows nothing on the screen even though you can see in the screenshot above there was data going back to at least the 1st of March (in reality, all the way back to 2020):
