Imported 3D Models/MeshParts Misalignment and Orientation Reset on Clients

A meshpart so simple just mesh and part how did everyone here even come to this stage

Recently I imported a set of traffic light mesh created in Blender into Roblox Studio using Import 3D tool in Avatars. The final model
imported into Roblox consists of multiple meshes grouped into one model.
I coloured it around a bit, and scripted the lights. When placing the model, I also gave them some rotation to sit parallel with the road intersection. However, when I test it in game the models appear to have gone into an exploded view, where everything seems severely misaligned compared to the one inside studio and all of the models are pointing in the orientation of (0,0,0) without the intervention of external scripts. Notably, this problem can only be observed on clients, it remains where it should be according to the server.

I still can’t tell if this is an engine issue or a problem with importing meshes using Import 3D. Please check for me

Basic video description:

External Media External Media

This problem also occurs in game for PC, mobile and tablet devices.

A place file has been uploaded for Roblox staffs.

A private message is associated with this bug report

This is just an acknowledgment announcement!

We’ve filed a ticket into our internal database for this issue, and we will update you when we have further information!

Thanks for the report!

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