Perspective Power Chart Point Count Bug

I have a perspective power chart where the operators want to be able to export the data to an excel spreadsheet and see the values at a specific interval. To do this I planned on creating a chart with a fixed time range and point count. But when I changed the point count, the chart wouldn’t load the data.

Here are some examples:

This will never load:

This will load fine:

I’ve done the same test with the following point counts:
2999 = Bad
3000 = Good
3010 = Bad
3500 = Bad
4000 = Good

Are the point counts only allowed to be divisible by 1000?