@Pmalek, maybe I'm missing something, but I've tried everything possible and just haven't been able to get the menu to set a custom fee - maybe BW and my (outdated Android) are no longer working as they should. When I have my next transaction I will try to take a screen sample and post it here.
Seems OK on my end except the overlapping issue that you can see on the first image:

But I have no problems accessing the custom fee settings and entering a different sat/vByte number:

Regarding opening links, I looked at Viber's settings and found an option called "Open links internally" and now I have a situation where some links are opened internally in Viber, and for some I get the message "no internet, try again". When it comes to WhatsApp, links from it still try to open in BW.
The links are not tried to be opened in the browser, and I really don't know how it is possible that the links are trying to be opened in an app with which it is simply not possible.
Does that only happen when you click on links in Viber and WhatsApp? What about links from this forum, social media, etc.? How do they open?
It might be a system-related issue. Something to do with the default apps that the system uses when opening links. Check your phone's settings. There should be an option to find the default app for opening links on your phone. Check under Settings and Applications or something like that.
If you can't fix it that way, you can always uninstall Blue Wallet and see how the links will open. Reinstall it again afterwards.