USDT perpetual order creation fails with "Error sign!" in place_active_order

[RumiFlow]

System: macOS pybit version: 1.3.0

My code is working for for coin based perpetual contracts. Tried adapting for the ETCUSDT perpetual contract. Authentication and active order queries work fine. However, creating an order fails with an "Error sign!" exception

Traceback (most recent call last):
  File "/Users/user/Dropbox/Projects/PTrader/PTrader.py", line 237, in <module>
    close_on_trigger="False")
  File "/Users/user/Library/Python/3.7/lib/python/site-packages/pybit/__init__.py", line 492, in place_active_order
    auth=True
  File "/Users/user/Library/Python/3.7/lib/python/site-packages/pybit/__init__.py", line 1870, in _submit_request
    time=dt.utcnow().strftime("%H:%M:%S")
pybit.exceptions.InvalidRequestError: Error sign! origin_string[api_key=valid_api_key&close_on_trigger=false&order_type=limit&price=52.11&qty=0.1&recv_window=5000&reduce_only=true&side=sell&symbol=etcusdt&time_in_force=goodtillcancel&timestamp=1633520617145] (ErrCode: 10004) (ErrTime: 11:43:37).
Request → POST https://api.bybit.com/private/linear/order/create: {'api_key': 'valid_api_key', 'close_on_trigger': 'False', 'order_type': 'Limit', 'price': 52.11, 'qty': 0.1, 'recv_window': 5000, 'reduce_only': 'True', 'side': 'Sell', 'symbol': 'ETCUSDT', 'time_in_force': 'GoodTillCancel', 'timestamp': 1633520617145, 'sign': '1c52731c9926946bc22332592dd31abeba4bedc017caed64528c79facb2428f2'}.

[dextertd]

Hm the returned origin_str is all in lower case, very strange. Can you show the full pybit call please (traceroute only shows the last last close_on_trigger="False"))

[RumiFlow]

Here the full call:

                    resp = pad.session.place_active_order(side=side, symbol=COIN_PAIR, order_type="Limit",
                                                      qty=newQty,
                                                      price=newPrice,
                                                      time_in_force="GoodTillCancel",
                                                      reduce_only="True",
                                                      close_on_trigger="False")

I use exactly the same call for coin based perpetuals except for parameters: reduce_only="True" & close_on_trigger="False"

[dextertd]

Please do the following params as booleans as shown, rather than strings

reduce_only=True,
close_on_trigger=False

[RumiFlow]

Yep! That did the trick. Thanks!