Updraft Backup Plugin Does not work with AWS for WordPress Plugin

Hello,

We have been using UpDraftPlus Backups plugin for over a year on all our sites and it works great. But ever since we installed the AWS for WordPress Plugin on one of our site (also known as Amazon Polly) to direct viewer’s traffic to AWS CloudFront, the UpDraftPlus plugin stops syncing with AWS S3 bucket. We’re able to create backups and can download the backup locally but it’s not pushing the S3 bucket. I read another forum that the problem is that the Amazon Polly plugin is using AWS SDK for PHP v.3, while some other plugins still use old v.2. The problem is that those two versions are not compatible, see full article here.

Here is a dropbox link to the full copy of the backup log: https://www.dropbox.com/s/wp0keb1u240flzt/log.d4d73c351166.txt?dl=0

Starting on line 229 you will see the error message.

Thanks!