Entering Weedwood Rowboat causes visual bug

[JohanniklasLp]

Version
1.5.10

Log
https://mclo.gs/j1tuqr8

Describe the issue
Entering a (Tarred) Weedwood Rowboat causes your perspective and audio to bug out, swapping back and forth between where you were before you entered it and where you actually are every tick. Pressing F5 sets the "where you were" perspective to your current location instead of toggling 3rd-person-mode.

To Reproduce

1. Obtain or cheat in a (Tarred) Weedwood Rowboat
2. Place it down, preferably in water.
3. Rightclick to sit in it
4. Observe the described visual effect
5. use A and D to drive around
6. Observe that the audio changes too according to which frame you are seeing
7. Press F5
8. Observe that one of the frames moved to your current location

Expected Behaviour
You should only have the inside-the-boat-perspective.

Additional Information
This seems to affect the Weedwood Rowboat and the Tarred Weedwood Rowboat exclusively, potentially because it messes with your perspective.

Video
Seizure-Warning. Turning on the audio is recommended.

row.row.row.your.boat.seizurely.down.the.stream.mp4

[JohanniklasLp]

I am messing around a bit more, gonna record my findings:

• This was already an issue in 1.5.9.1, but it was not an issue in 1.5.8.2
• It's caused by one of the mods added in 1.5.9
• Removing Gnetum removed the bug
• The issue exists in an instance with just betweenlands and gnetum

[JohanniklasLp]

I opened an Issue on the Gnetum Github
This has been fixed on their end in a new Gnetum Version