In a globalized world, people often move between the countries, cultures and religions. In a way, this is natural. As wonderful as it is to have a freedom of choice, converting into a different religion could create problems.
This is not about one religion being better than the other. The movement between the different religions itself is not as straightforward as we may think. In some cases it is possible, while in others it is not. One has to follow the protocol to facilitate such a transition.
To my observation, the first generation converts may experience ongoing financial problems and feeling unsettled, which has a ripple effect through their family relationships. They may also experience health problems which are difficult to diagnose. Some of them may have difficulties with having children, or children could be born with disability.
While any of these problems may happen to anybody, I find that with the first generation converts at least one of these problems is present.
The thing is that any religion rests on the sets of codes. It uses certain informational structures to create permissions and prohibitions for its adepts. If we compare a person to a computer, his or her religious beliefs function similarly to an operating system. It processes the life events in a predictable manner.
The machines with the different operating systems do not communicate very well. Same is true for humans. When the blood relatives (linked by genetic code) have different religions (set of moral and behavioral norms), the scope for misunderstanding is huge.
We can add to this mismatch the discord with the ancestral spirits (if one moves away from Taoism, for example) , and it becomes clear that there is a potential for things to go wrong. Unfortunately, there no simple solutions to fix this, and one may need to either re-convert back original religion, or to go through a set of rituals associated with leaving one religion before joining the other.