Variant encoding errors in Remote scene tree with typed array of resources

[akien-mga]

Tested versions

• Reproducible in 4.3.dev (4728ff3)
• Not reproducible in 4.3.dev5
• Likely a regression from Core: Add typed array support for binary serialization #78219

System information

Fedora Linux 39 (KDE Plasma) - Wayland - Vulkan (Forward+) - dedicated AMD Radeon RX 7600M XT (RADV NAVI33) () - AMD Ryzen 7 7840HS w/ Radeon 780M Graphics (16 Threads)

Issue description

The attached MRP has a node whose script includes @export var frames: Array[ImageTexture].

When playing the scene and selecting this node in the Remote scene tree, these errors are printed to the output:

ERROR: Condition "!p_full_objects" is true. Returning: ERR_UNAVAILABLE
   at: encode_variant (./core/io/marshalls.cpp:1316)
ERROR: Condition "!p_full_objects" is true. Returning: ERR_UNAVAILABLE
   at: encode_variant (./core/io/marshalls.cpp:1316)
ERROR: Condition "!p_full_objects" is true. Returning: ERR_UNAVAILABLE
   at: encode_variant (./core/io/marshalls.cpp:1316)
ERROR: Condition "err" is true. Returning: err
   at: encode_variant (./core/io/marshalls.cpp:1806)
ERROR: Condition "err" is true. Returning: err
   at: encode_variant (./core/io/marshalls.cpp:1806)
ERROR: Condition "err" is true. Returning: err
   at: encode_variant (./core/io/marshalls.cpp:1806)
ERROR: Condition "err" is true. Returning: err
   at: encode_variant (./core/io/marshalls.cpp:1806)
ERROR: Condition "err != OK || size > out_buf.size() - 4" is true. Continuing.
   at: _write_out (./core/debugger/remote_debugger_peer.cpp:108)

Steps to reproduce

• Open MRP, run the scene
• Switch to Remote scene tree
• Select Main, then select Rabbit
• See the errors

Minimal reproduction project (MRP)

remote-tree-marshalls.zip