# Simlink error with Toliss

**URL:** <https://forum.navigraph.com/t/simlink-error-with-toliss/24078>\
**Category:** Simlink/Moving Map\
**Created:** [August 12, 2026, 9:03pm UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078 "2026-08-12T21:03:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![KristianN](https://avatars.discourse-cdn.com/v4/letter/k/35a633/32.png) [@KristianN](https://forum.navigraph.com/u/KristianN)\
**Post date:** [August 12, 2026, 9:03pm UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078/1 "2026-08-12T21:03:52Z")

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### Simulator Version

X-Plane 12

### Operating System

Windows 11

### Description of the Issue

X-Plane 12 Simlink 1.1.41.1805 works normally with the default Laminar C172. With both ToLiss A321 and A330, Simlink receives aircraft data but `altitude.indicated` is `nan`. The Simlink log reports `Incomplete object received`, the UI reports `Client posted invalid data`, and Navigraph Charts reports that Simlink cannot connect.

### undefined

[simlink\_2026-08-12.dlog](https://forum.navigraph.com/uploads/short-url/ARFe7vJc9WwyB9Bl1bKJ3qZiQx.dlog) (504 KB)

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<div class="post-metadata">

**Author:** ![Ian](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/ian/32/154_2.png) [@Ian](https://forum.navigraph.com/u/Ian)\
**Post date:** [August 13, 2026, 1:18am UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078/2 "2026-08-13T01:18:04Z")

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Please restart the machine and check you have the latest Toliss A321. I have installed ToLissA321\_V1p3p2 and get a normal Simlink connection:

 ![image](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/3X/5/a/5a23457ad75ed2dcb8823a7b13c3a9946f9aca90.png)

Cheers

Ian

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<div class="post-metadata">

**Author:** ![KristianN](https://avatars.discourse-cdn.com/v4/letter/k/35a633/32.png) [@KristianN](https://forum.navigraph.com/u/KristianN)\
**Post date:** [August 13, 2026, 8:42am UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078/3 "2026-08-13T08:42:11Z")

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Hi Ian,

I am on Simlink 1.1.41.1805 and Toliss A321 Professional v1.9.1.

BR

Kristian

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<div class="post-metadata">

**Author:** ![Ian](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/ian/32/154_2.png) [@Ian](https://forum.navigraph.com/u/Ian)\
**Post date:** [August 13, 2026, 11:09am UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078/4 "2026-08-13T11:09:16Z")

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We are investigating.

Cheers

Ian

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<div class="post-metadata">

**Author:** ![KristianN](https://avatars.discourse-cdn.com/v4/letter/k/35a633/32.png) [@KristianN](https://forum.navigraph.com/u/KristianN)\
**Post date:** [August 13, 2026, 11:39am UTC](https://forum.navigraph.com/t/simlink-error-with-toliss/24078/5 "2026-08-13T11:39:27Z")

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Thanks Ian. I’m puzzled.