TEN -> Legacy Remapping Corruption

[Stranger1992]

When copying objects from a TombEngine WAD2 to a TR4 targetted WAD2, objects no longer copy over correctly and are not remapped.

Looking at the code (Tomb-Editor\TombLib\TombLib\Catalogs\Engines\TR4) : I cannot see anything that is causing this error:

    <moveable id="1" name="PISTOLS_ANIM" description="Pistols Anim" use_body_from="8" ten="PISTOLS_ANIM" hidden="true" />
    <moveable id="2" name="UZI_ANIM" description="Uzi Anim" use_body_from="8" ten="UZI_ANIM" hidden="true" />
    <moveable id="3" name="SHOTGUN_ANIM" description="Shotgun Anim" use_body_from="8" ten="SHOTGUN_ANIM" hidden="true" />
    <moveable id="4" name="CROSSBOW_ANIM" description="Crossbow Anim" use_body_from="8" ten="CROSSBOW_ANIM" hidden="true" />
    <moveable id="5" name="GRENADE_GUN_ANIM" description="Grenade Gun Anim" use_body_from="8" ten="GRENADE_ANIM" hidden="true" />
    <moveable id="6" name="SIXSHOOTER_ANIM" description="Sixshooter Anim" use_body_from="8" ten="REVOLVER_ANIM" hidden="true" />
    <moveable id="7" name="FLARE_ANIM" description="Flare Anim" use_body_from="8" ten="FLARE_ANIM" hidden="true" />
    <moveable id="8" name="LARA_SKIN" description="Lara Skin" ten="LARA_SKIN" hidden="true" />
    <moveable id="9" name="LARA_SKIN_JOINTS" description="Lara Skin Joints" ten="LARA_SKIN_JOINTS" hidden="true" />
    <moveable id="10" name="LARA_SCREAM" description="Lara Scream" use_body_from="8" ten="LARA_SCREAM" hidden="true" />

However: in Wadtool: the above slots are remapped as shown here:

The same thing is happening with TR3.

However, when copying from a compiled .phd , .tr2 or .trc file: this does not happen.

I have included a WAD2 below. It is set for TombEngine targets. To repro: try copying the objects from it to a WAD2 set for TR4 or TR3.
Tr3_JungleLara.zip