Issue with Acrobat Sign for Salesforce and Lightning Web Security

Hello everyone,

we are using since about 3 year the Package "Acrobat Sign for Salesforce" in order to integrate eSign in salesforce. It is working fine so far.

We activated Lightning Web Security in salesforce (Lightning Web Security | Develop Secure Code | Lightning Web Components Developer Guide | Salesforce Developers) and since then we have during each eSign Agreement creation an error appearing (see screenshot attached)... deactivating the "Lightning Web Security" and the error disappear again!

We are already in contact with the salesforce support, but in summary, it seems that the aria-describedby property is referencing to an element in a different template/shadow root, that it seems not posible when Lightning Web Security is enabled,  and that should be solved by Adobe. It seems Salesforce already has docs and sample how to access Aria properties

https://developer.salesforce.com/docs/platform/lwc/guide/create-components-accessibility-attributes.html  and https://developer.salesforce.com/docs/platform/lwc/guide/create-light-dom.html#access-elements 

Does anyone have the same issue? Any idea how to solve it or when it will be solved?

Thanks and best regards,

Matthieu