Hi, @Stacy Hummel. Recently ran into an intermittent Stipe issue that I was able to resolve in two ways; changing how the Stripe add-on processes one-time payments, and building the entire shopping card with repeaters:

• Set the Stripe add-on to process payments after entry is created:
  Global Settings -> Stripe -> Process One-time Payments<
• Products re-built with repeaters, not embedded forms
• Subtotal fields outside of each repeater to sum each repeater
• Grand Total field at the end sums the the subtotal fields
• Grand total field is used in the Stripe action
• General form setting: disable honey pot/js "security"

• If you need to use values from another form, rather than embedding, maybe try setting the default value of the product fields using the frm-field-value field_id=x entry=x] method?

I also switched to the Cloudflare captcha add-on. The intermittent nature of the problem, for me, seemed to come from a combination of things, and was most resolved by changing the processing of single payments and changing up how I built each product and did the grand total calculations (for instance, shirts with different styles and sizes where the price was different based on the size, so each line had to be calculated as style and size * quantity; calc price in each row; sum that column in the external subtotal field). Make sure your wp environment is optimized, too. Along with beefing up compute power, tweaking the environment variables also helped deal with intermittent lags in actions processing. Had to set my pages to private, put the Stripe add-on into test mode and dial it in before turning back live. Twas a pain, but it worked. Hope this helps.