Maybe these scriptures will help, showing the fall into false teachings:
They show nothing about falling into false teachings. These have to do with the time during the 42-months. You conveniently leave those verses out.
[5 The beast was given a mouth to utter proud words and blasphemies and to exercise its authority for forty-two months. 7 It was given power to wage war against God’s holy people and to conquer them. And it was given authority over every tribe, people, language and nation..]
[24 They will fall by the sword and will be taken as prisoners to all the nations. Jerusalem will be trampled on by the Gentiles until the times of the Gentiles are fulfilled.] [2 But exclude the outer court; do not measure it, because it has been given to the Gentiles. They will trample on the holy city for 42 months.]
And again, when it comes to the chosen ones, these would never fall into false teachings. That is the whole point why they get chosen.
[These are those who did not defile themselves with women, for they remained virgins. They follow the Lamb wherever he goes. They were purchased from among mankind and offered as firstfruits to God and the Lamb. No lie was found in their mouths; they are blameless.]