diff --git a/README-ja.md b/README-ja.md
index 95327b36..f1106960 100644
--- a/README-ja.md
+++ b/README-ja.md
@@ -99,7 +99,7 @@ accelerate configの質問には以下のように答えてください。（bf1
 ```
 
 ※場合によって ``ValueError: fp16 mixed precision requires a GPU`` というエラーが出ることがあるようです。この場合、6番目の質問（
-``What GPU(s) (by id) should be used for training on this machine as a comma-seperated list? [all]:``）に「0」と答えてください。（id `0`のGPUが使われます。）
+``What GPU(s) (by id) should be used for training on this machine as a comma-separated list? [all]:``）に「0」と答えてください。（id `0`のGPUが使われます。）
 
 ## アップグレード
 
diff --git a/README.md b/README.md
index 3f3ecf79..dcb5fc3b 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,11 @@ This repository contains training, generation and utility scripts for Stable Dif
 
 ## Updates
 
+- 17 Jan. 2023, 2023/1/17
+  - __Important Notice__ 
+  It seems that only a part of LoRA modules are trained when ``gradient_checkpointing`` is enabled. The cause is under investigation, but for the time being, please train without ``gradient_checkpointing``.
+  - __重要なお知らせ__
+  ``gradient_checkpointing`` を有効にすると LoRA モジュールの一部しか学習されないようです。原因は調査中ですが当面は ``gradient_checkpointing`` を指定せずに学習してください。
 - 15 Jan. 2023, 2023/1/15
   - Added ``--max_train_epochs`` and ``--max_data_loader_n_workers`` option for each training script. 
   - If you specify the number of training epochs with ``--max_train_epochs``, the number of steps is calculated from the number of epochs automatically.
@@ -92,8 +97,8 @@ Answers to accelerate config:
 - fp16
 ```
 
-note: Some user reports ``ValueError: fp16 mixed precision requires a GPU`` is occured in training. In this case, answer `0` for the 6th question: 
-``What GPU(s) (by id) should be used for training on this machine as a comma-seperated list? [all]:`` 
+note: Some user reports ``ValueError: fp16 mixed precision requires a GPU`` is occurred in training. In this case, answer `0` for the 6th question: 
+``What GPU(s) (by id) should be used for training on this machine as a comma-separated list? [all]:`` 
 
 (Single GPU with id `0` will be used.)
 
diff --git a/gen_img_diffusers.py b/gen_img_diffusers.py
index 4edfe0b2..7b4ef2e5 100644
--- a/gen_img_diffusers.py
+++ b/gen_img_diffusers.py
@@ -2518,9 +2518,9 @@ if __name__ == '__main__':
   parser.add_argument("--bf16", action='store_true', help='use bfloat16 / bfloat16を指定し省メモリ化する')
   parser.add_argument("--xformers", action='store_true', help='use xformers / xformersを使用し高速化する')
   parser.add_argument("--diffusers_xformers", action='store_true',
-                      help='use xformers by diffusers (Hypernetworks doen\'t work) / Diffusersでxformersを使用する（Hypernetwork利用不可）')
+                      help='use xformers by diffusers (Hypernetworks doesn\'t work) / Diffusersでxformersを使用する（Hypernetwork利用不可）')
   parser.add_argument("--opt_channels_last", action='store_true',
-                      help='set channels last option to model / モデルにchannles lastを指定し最適化する')
+                      help='set channels last option to model / モデルにchannels lastを指定し最適化する')
   parser.add_argument("--network_module", type=str, default=None, nargs='*',
                       help='Hypernetwork module to use / Hypernetworkを使う時そのモジュール名')
   parser.add_argument("--network_weights", type=str, default=None, nargs='*',