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5.8 not compiling. Says needs to build from source

Status: Open.

#581 In ruyo/VRM4U;

· CarlosDorietyJr opened on Jun 25, 2026

UE 5.8 Mac build fails with -Werror,-Wunreachable-code in VRM4ULoader

Status: Open.

#580 In ruyo/VRM4U;

· MarksonChen opened on Jun 24, 2026

VRM 1.0 spring bones ignore wind — VRM1SpringManager::update() has no wind handling (windScale / WindDirectionalSource have no effect)

Status: Open.

#579 In ruyo/VRM4U;

· franadoriv opened on Jun 20, 2026

VRMSpringBoneが二股以上に分岐するボーンで揺れない

Status: Open.

#577 In ruyo/VRM4U;

· yumetengu26 opened on May 22, 2026

UE 5.5 No IK Retargeter

Status: Open.

#576 In ruyo/VRM4U;

· mrcatik121 opened on May 22, 2026

UE 5.7.4 | [Bug/Issue] Material Instance didn't imported (Only textures)

Status: Open.

#575 In ruyo/VRM4U;

· Tegarpmngks opened on Apr 25, 2026

Performance: Importing large PMX files is extremely slow

Status: Open.

#574 In ruyo/VRM4U;

· rintrint opened on Mar 25, 2026

UE 5.7 IK retargeter broken feet

Status: Open.

#573 In ruyo/VRM4U;

· LuckyCat77 opened on Mar 18, 2026

{UE5.4]捻りの補助ボーンを含むモデルでBodyRigを生成すると補助ボーン以下に配置されているボーンの構成が破綻する

Status: Open.

#572 In ruyo/VRM4U;

· bbbbit opened on Mar 9, 2026

Can't import UV2（second UV）

Status: Open.

#571 In ruyo/VRM4U;

· zhoushilei0918 opened on Mar 7, 2026

LoadVRMFileFromMemory crash in Standalone play

Status: Open.

#570 In ruyo/VRM4U;

· ZeyrinPixel opened on Feb 23, 2026

Runtime loading crash during PIE

Status: Open.

#569 In ruyo/VRM4U;

· ZeyrinPixel opened on Feb 22, 2026