diff --git a/Known-issues.md b/Known-issues.md
index 4fd5f6b..3ae2140 100644
--- a/Known-issues.md
+++ b/Known-issues.md
@@ -130,6 +130,7 @@ I:stackwalker: 74664880 (libavs-win32): (unknown): XCd229cc000099
  * iidx31 and above requires AVX2 instruction set. If your CPU is too old, you will not be able to run the game, it will crash with `EXCEPTION_ILLEGAL_INSTRUCTION`.
  * iidx31+ will most likely not run on integrated GPU (Intel or AMD), resulting in a crash when entering song select screen.
  * On some GPUs, DX9on12 may crash iidx31+. Turn off `DX9on12` / `9on12` options on these versions of iidx. Your log will be spammed with `afputils: CTexture::set_texture_image テクスチャの取得に失敗` or `W:CTexture: no such texture: id` and the game will eventually crash.
+ * iidx27-29 may mysteriously crash during boot when using `-iidxtdj` option on 003 DLL. As a fix, enable `Lightning Mode camera crash fix` patch, or just use 010 DLL.
 
 #### LDJ specific