Twitter and Ebay works fine with uBO and default settings/lists. If these do not work, you most likely mis-configured uBO with overzealous filter lists and/or rules. The fact that you say you needed _allow_ rules reinforce this, _allow_ rules are typically never needed except in exceptional cases, and only temporarily, so if you think you needed them all the time, then you definitely misconfigured uBO, and the latest version merely brought this to your attention.