mpbm23

You should contact woothemes support at https://support.woothemes.com/hc/en-us this is a paid plugin

Yes everything seems to work fine.

What did you overwrite?
Test again and see the output and the log files.

If you use the stock email templates is everything working fine?
Maybe there is an error in the email templates you used.
You should enable wp_debug to see what is happening https://www.ads-software.com/support/topic/how-to-debug-issues-after-updates

You are welcome!

Are you using the gateway from here https://www.multisafepay.com/solutions/shop-plug-ins/detail/plugins/woocommerce/
I am seeing in their gateway they have commented out the
$order->reduce_order_stock(); command.

Without this command I believe stock statuses are not lowered when payment is made, so you can try and contact them .

It does not seem to be a Woocommerce bug. I tested both low stock and out of stock. And e-mails where sent correctly.

What payment gateway are you using? Does it happen to all of them?

Check the stock status of your products, if the numbers are correct. Maybe the update changed them.

I don’t think this is the optimal solution. You have duplicate products?
By using product attributes you will be able to use filters to show them in the way you want.

Where exactly you are trying to show in the categories?

(Type,colour,size,style) are categories or product attributes?

You should contact the multi vendor plugin author.

What Woocommerce version do you have?
Do you have low stock notification enabled?
Do other emails come correctly?
Are your product stock statuses correct?

You can get an older version from here https://www.ads-software.com/plugins/woocommerce/developers/

Then you should contact https://support.woothemes.com as this is a paid plug-in

Who is the author of the Drip plugin?