Hi Zaja,
Were you able to resolve this? We experience the same issue. The plugin seems to work about 85% of the time with no problem, but then stops working sporadically for different form entries.
Thanks for the quick response Mark. We were using PHP 8.0. We downgraded to PHP 7.4 and the brackets started working again. We’ll post on the premium support page if we run into further issues.
I’m using the Conditional Fields for Contact Form 7 plugin as well, so if I can add multiple [stripe] form-tags in the same form, I can hide all of them until a condition is met.