Quote Originally Posted by lat9 View Post
I've got v5.0.0-beta5 packaged up (https://github.com/DivaVocals/zen_Im...g/v5.0.0-beta5)….
Well done, Lat9! The Beta5 version solved the issue I had. Thank you.

My delayed in testing/replying was because I detected another problem not long after posting #12 and was busy uninstalling/reinstalling plugins to try and find out if that was being caused by IH5 or another plugin. I think it’s both because, while I can't pinpoint exactly when this issue started occurring, I can confirm I was successfully using OPC while IH4 was loaded.…
A problem occurs during the One-Page Checkout: At the Select Shipping/Payment and Confirm Your Order page, when I click the Confirm Order / Review Order button (which depends on Payment Methods Requiring Confirmation setting), the button changes from black to blue but doesn’t cause transfer to the final checkout page. No error log is generated and I can return to shopping but checkout won't progress to completion.

The OPC and IH4 support threads refer to an incompatibility issue between these which I believe was addressed in IH5 (tho the error symptoms weren't identical). In any case, I tried a few things with no luck:
1. uninstall OPC 1.4.0 and installed OPC 1.4.1
2. tried processing orders without OPC turned on: orders were processed completely - no error
3. uninstalled IH5Beta4 and installed IH5Beta5. OPC’s Confirm Order button still didn’t work.
4. turned on the OPC debug. This generated two files. I’ve attached the one citing multiple Notices.
Can you help, please? Thanks.
Attachment 17373