Homepage in the e-mails while order is set to be payed by cash on delivery

Hi guys!
Thanks for really good plugin.
It was working really good but around september something weird started to happen.
When customer make order and the payment is set to cash on delivery then system sends custom email regarding the new order with homepage html in it.
In the system it is set that every time when order is changed to “In progress” ( which happens automatically while order is “payment on delivery”) – then custom email should be sent.
What’s more – when I will manually resend this order e-mail – it is correct.
Any ideas how to solve this?

Thanks in advance.

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