You're not alone with the problems with the latest API having conflicts with webview applications. Since its release around September of last year, there have been tons of issues; you can do a Google search. The biggest problem for me is that elements in advertisements are being blocked and my apps are being suspended for being deceptive.

While I'm very grateful for this service and its generous pricing, I feel like this upgrade was left for the last minute. It would be great if they downgraded back to version 34, and we customers can file for extensions until they work out the bugs. Good luck.

You'll have to use a cloud API as native text to speech isn't supported in webview applications. Here are some examples:

Google Cloud

ElevenLabs

I do not work for website2apk

Just until the major problems with the webview can be figured out. I would be happy to test around the clock if you can provide me with a decompiled version of your Android Studio project.