Saturnin_UFOlud

I found what I was doing wrong. I added tags only to blocks not items. I should have placed the same .json files also in data.minecraft.tags.items. Now everything works fine.

Use .addBox method instead. Example code: this.bipedBody = new ModelRenderer(this, 0, 1); this.bipedBody.addBox(0F, 0F, 0F, 11, 11, 11); this.bipedBody.setRotationPoint(-5F, -1F, -6F); If you are using Eclipse you can view vanilla Minecraft entity models implementation in "Project and External Dependencies/forge_1.15 (...) /net/minecraft/client/renderer/entity/model" It could be helpful.

I removed this unnecessary handler but it didn't help, unfortunately. Should I register block tags in some way besides putting appropriate .json files in data.minecraft.tags.blocks ? However, the #minecraft.planks tag is displayed in F3 mode. I don't register in forge objects here, but these functions only adds objects to ArrayLists in my class "PgcRegistry" and set their registry name, I register these objects later for example here.

I just placed planks.json in resources/data/minecraft/tags/blocks directory. https://github.com/SaturninUfolud/PGC

Adding tag minecraft.planks do not provide vanilla recipes (for example creating crafting table, chest or sticks). Similarly, tag minecraft.sand do not provide smelting recipe for a glass block. It works fine for example with minecraft.dragon_immune or enderman_holdable.

If method "PotionBrewing.addMix" is public, it will be much easier to add new potion brewing recipe.

I suggest adding method to Entity.class "public Entity changeDimension(int dimensionIn, net.minecraftforge.common.util.ITeleporter teleporter)", which allows teleport entity with custom Teleporter and interface "Iteleporter to "Teleporter.class" like it was done in "forge 1.12.2".