Circumstances where guides refuse to speak

[Mewwy]

What are the circumstances where guides do not tell you what you wish to know?

Can a person's guides disagree with each other on possible results waiting on different ends of different paths one choose to walk on?

I can understand if psychic mediums pass on different information to sitters due to how perspectives can be conveyed into very different impressions. However, reasons for silence from guides are unknown to me.

Sometimes guides appear to be able to answer some questions during the same contact from the same psychic. In my experience the ability of psychics are never flawed - it seemed like guides intend to remain silent on some questions I have in mind.