# Nightly 8.1 Changelogs - 2021

**URL:** <https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410>\
**Category:** Ignition Early Access\
**Created:** [January 19, 2021, 7:32pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410 "2021-01-19T19:32:07Z")\
**Posts on this page:** 1\
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**Author:** ![sreis](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/sreis/32/14631_2.png) [@sreis](https://forum.inductiveautomation.com/u/sreis)\
**Post date:** [January 20, 2021, 5:44pm UTC](https://forum.inductiveautomation.com/t/nightly-8-1-changelogs-2021/42410/4 "2021-01-20T17:44:05Z")

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Nightly Changelog: 8.1.2-b20210120

## Data Model

**1550: Optimistic Writes Race Condition With Derived Tags**  
Fixed a race condition when writing to multiple derived tags with the same source value.

## Visualization

**1436: Dropdown component in 8.1.0+ and 8.0.16+ vision squishes options if font size is greater than default size**  
The Vision Dropdown List component now defaults to a row height of -1. A -1 row height automatically uses the current font to determine an appropriate row height to fully display the available choices in the dropdown.

**795: Vision Bar Chart Foreground Transparency Tooltip is referencing the Pie Chart**  
Modified Vision Bar Chart Foreground Transparency property tooltip description.

## Platform

**353: The top and bottom of characters in the Named Query parameter table dropdowns are cut off**

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