# Core Historian - Realtime glitch?

**URL:** <https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632>\
**Category:** Ignition\
**Tags:** ignition83, perspective\
**Created:** [March 23, 2026, 9:28pm UTC](https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632 "2026-03-23T21:28:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![tgarrison](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tgarrison/32/80965_2.png) [@tgarrison](https://forum.inductiveautomation.com/u/tgarrison)\
**Post date:** [March 23, 2026, 9:28pm UTC](https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632/1 "2026-03-23T21:28:53Z")

</div>

Anyone else seen this? Is it an issue with the Core Historian? Or with the XY Chart?  
Ignition 8.3.4

All 4 graphs are showing the same tag, realtime, 1hr.  
XY Chart's tag history config is set to "Prevent Interpolation"

What's up with the As Stored graph. The dataset returned always has a point 3hrs into the future.

 ![Screenshot 2026-03-23 173010](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/5/f5b35c7fb31a50aaf90b37c84e99b209a8e95342.png)

---

<div class="post-metadata">

**Author:** ![hlam](https://avatars.discourse-cdn.com/v4/letter/h/ea666f/32.png) [@hlam](https://forum.inductiveautomation.com/u/hlam)\
**Post date:** [March 24, 2026, 12:03am UTC](https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632/2 "2026-03-24T00:03:45Z")

</div>

I’ve reported this bug and they’ve confirmed that it exists. Its with the core historian and an issue with timestamps and UTC conversion.

It is related to this issue here. I have not tried the nightlies that has the referenced fix.

[https://forum.inductiveautomation.com/t/system-historian-queryrawpoints-returns-data-outside-of-bounds/114395](https://forum.inductiveautomation.com/t/system-historian-queryrawpoints-returns-data-outside-of-bounds/114395)

---

<div class="post-metadata">

**Author:** ![tgarrison](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tgarrison/32/80965_2.png) [@tgarrison](https://forum.inductiveautomation.com/u/tgarrison)\
**Post date:** [March 24, 2026, 12:16am UTC](https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632/3 "2026-03-24T00:16:41Z")

</div>

Perfect. Read that thread and it does look like it’s exactly the same. Missed it in my searching somehow.

---

<div class="post-metadata">

**Author:** ![tgarrison](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/tgarrison/32/80965_2.png) [@tgarrison](https://forum.inductiveautomation.com/u/tgarrison)\
**Post date:** [March 24, 2026, 12:30pm UTC](https://forum.inductiveautomation.com/t/core-historian-realtime-glitch/114632/4 "2026-03-24T12:30:13Z")

</div>

Pulled the nightly into Docker and confirmed it works as expected now.

Just gotta wait for 8.3.5