MatrixInn Floating Buttons

I really wanted to like this plugin. The design is clean, the settings are easy to use, and it looks great on the website. But unfortunately, the WhatsApp button has a serious bug that makes it unusable on mobile devices.The problem:When you click the WhatsApp button on a phone, WhatsApp shows an error message saying the number is not registered on WhatsApp. However, the same number works perfectly fine when entered directly in the browser.After investigating, I found that the plugin generates a link with an invisible character (Zero-Width Space, <span style="font-family: inherit; font-size: 0.8rem; text-align: initial;">%E2%80%8B</span>) right after the phone number://wa.me/4920888352220%E2%80%8B?text=…This invisible character prevents WhatsApp from recognizing the number on mobile devices.Additional issue:The "Pre-filled Message" field cannot be left empty – the plugin automatically inserts "Hello! I would like to know more." This automatic message seems to be the source of the invisible character. There is no way to remove it.Support:I contacted the support team about this bug several days ago, but I have not received any response yet. That is very disappointing.Conclusion:The plugin looks good and has potential, but the WhatsApp button bug makes it unusable for me. I hope the developer fixes this issue soon and improves their support response time.