Baskets 799, 798, 807, 797, 790, and 789 seam to be throwing a MISMATCH. That looks like it could be a bug. Looks like the fraud check on our end isn't taking into account different amounts for initial and recurring amounts.
This is now fixed and is pending review and merge for a new build release. I however have already installed the fixed gateway build for you so your install is patched.
forge.joomlapolis.com/issues/8826
I have confirmed this all works using a single payment, merchandise payment, donation payment, recurring payment, and recurring payment with different initial amount. All tests were successful. So your site should be good to go and we'll have a new CBSubs build release available later for anyone else with same issue.