# Vessel visualization error when upgrading to 8.1.16

**URL:** <https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [April 25, 2022, 9:05am UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804 "2022-04-25T09:05:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Josu](https://avatars.discourse-cdn.com/v4/letter/j/51bf81/32.png) [@Josu](https://forum.inductiveautomation.com/u/Josu)\
**Post date:** [April 25, 2022, 9:05am UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804/1 "2022-04-25T09:05:52Z")

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I have discovered that the Vessel symbol has stopped displaying correctly since I updated to version 8.1.16 (starting from a version 8.1.14).  
The vessel level is displayed outside the tank perimeter, offset below its actual value. (Attached image)  
I’m not sure if it’s a bug or if I did something wrong during the update as in a “clean” install seems to work properly.  
Any help on how to fix it would be appreciated!

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/c/8/c8426267d9d5e9f4c769fdfb9cedecd8d872c8ab.jpeg)

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**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\
**Post date:** [April 25, 2022, 3:12pm UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804/2 "2022-04-25T15:12:16Z")

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Apparently there’s an (as yet undiagnosed) case where Perspective’s symbols fail to update cleanly. Support ([support.inductiveautomation.com](http://support.inductiveautomation.com)) can guide you through the process of making sure they update properly.

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**Author:** ![wbaker](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/wbaker/32/85315_2.png) [@wbaker](https://forum.inductiveautomation.com/u/wbaker)\
**Post date:** [April 25, 2022, 7:19pm UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804/3 "2022-04-25T19:19:09Z")

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I have ticket #45056 for this issue. I shared your response to see what next steps are.

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**Author:** ![n099y](https://avatars.discourse-cdn.com/v4/letter/n/258eb7/32.png) [@n099y](https://forum.inductiveautomation.com/u/n099y)\
**Post date:** [October 17, 2022, 11:39pm UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804/4 "2022-10-17T23:39:41Z")

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I also have this problem in 8.1.21

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/5/9/590ab259204e05575fd5a1351ecd3767553e506a.png)

But ok when horizontal.

 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/e/5/e57dc80ea046255d42fcfc80e66a3e180b51e915.png)

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**Author:** ![Josu\_Sanchez](https://avatars.discourse-cdn.com/v4/letter/j/ed8c4c/32.png) [@Josu\_Sanchez](https://forum.inductiveautomation.com/u/Josu_Sanchez)\
**Post date:** [October 18, 2022, 7:09am UTC](https://forum.inductiveautomation.com/t/vessel-visualization-error-when-upgrading-to-8-1-16/58804/5 "2022-10-18T07:09:43Z")

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[icons.zip](https://forum.inductiveautomation.com/uploads/short-url/xniKoBsPBpGtjI2wtD6xYP1SIP3.zip) (150.6 KB)

My problem was solved with the release of 8.1.18 but haven't tryed upgrading to 8.1.21.  
A workarround I found prior to the release of the correction was to get the .svg files from a clean install and replace them in the path "\data\modules\com.inductiveautomation.perspective\icons " and then restart the gateway. Hope it helps!