Managed to fix the anthro race being invisible. Idk if theres a hundred other issues but here:
In "Races_Anthro.xml" Everything marked with * are new lines, with the non marked lines above and below to show where I put them.


<lifeExpectancy>99</lifeExpectancy>
*<bloodDef>Filth_Blood</bloodDef>
*<renderTree>Humanlike</renderTree>
*<bloodSmearDef>Filth_BloodSmear</bloodSmearDef>
<leatherDef>Leather_Plain</leatherDef>

<manhunterOnTameFailChance>0</manhunterOnTameFailChance>
*<canBecomeShambler>true</canBecomeShambler>
*<knowledgeCategory MayRequire="Ludeon.RimWorld.Anomaly">Basic</knowledgeCategory>
*<anomalyKnowledge>1</anomalyKnowledge>
<fleshType>Flesh_Anthro</fleshType>

</recipes>
*<comps>
*<li MayRequire="Ludeon.RimWorld.Anomaly" Class="CompProperties_HoldingPlatformTarget">
*<baseEscapeIntervalMtbDays>120</baseEscapeIntervalMtbDays>
*<getsColdContainmentBonus>true</getsColdContainmentBonus>
*</li>
*<li MayRequire="Ludeon.RimWorld.Anomaly" Class="CompProperties_Studiable">
*<frequencyTicks>120000</frequencyTicks>
*<minMonolithLevelForStudy>1</minMonolithLevelForStudy>
*<requiresImprisonment>true</requiresImprisonment>
*</li>
*</comps>
</AlienRace.ThingDef_AlienRace>

Hope this helps, R-MK! Huuuge fan of what youve made and wanna see this working asap ^^.
I honestly dont know a single thing about programming or modding. So this was not easy to figure out! Which is also why I mention that hey, dont trust that this means the mod works perfectly now XD But adding these lines made them appear ingame for me!
I imagine the main line that was necessary is "renderTree", that sounds like the kind of thing that would mess with rendering :P

Was gonna make this a regular comment but then steam comment character limit stopped me :(