Many users of iOS devices with jailbreak, carried away by installing various tweaks from Cydia, sometimes find that some applications or iOS as a whole do not work correctly. After installing a large number of tweaks, it is difficult to determine what caused this or that application to fail. Let's give one such example, when the built-in YouTube client stopped working "thanks to" tweaks.
Instead of watching the video in the application window, they see the following picture:
The way out of this situation is quite simple. Most likely, YouTube's performance was affected by disabling the display of its icon on the desktop. It could be one of the following Poof tweaks, Springtomize 2 or SBSettings.
The first tweak is quite simple and the only thing it does is hide certain icons on the Springboard (main screen). You just need to go to the tweak menu and turn on the switch for displaying the icon opposite the YouTube client.
In the case of Sprintomize 2 and SBSetting, you need to dig into the settings. In the first case, follow the path Icons -> Hide icons (Choose Icon) -> and, as in the case of Poof, uncheck YouTube. In the second, in the tweak settings, go to the Hide icons menu and, again, deactivate the switch near YouTube.