strange alien ways modifier reset

[Trev_lite]

when i was playing i noticed that sometimes other empires which i was on good terms with would suddenly distrust me. when i looked at the diplomacy screen i could see that they "distrust my strange alien ways". this is odd since i have known them for years and that modifier decreased to zero but now its back (i have not seen it at -25 but that might be because it has already decreased a little)
I'm not sure whats causing this but it messes up my tech trading plans.
i have seem this happen in multiple games.

[Fishers of Men]

I have seen this happen, too. It first appeared in the Shadows expansion, and I don't know if it was intended to be this way. For now I just roll play the issue by believing there was a leadership change in the empire that this occurs and I am starting over by getting to know the new management. But I would like an answer if the game is suppose to do this or not.

[feelotraveller]

It is one of the race characteristics of the Quameno that they do this periodically. Just saying...

[Trev_lite]

well the only stock race (playing extended mod) that i remember this happening to was the quameno.
if it happens again i will report what race it happened too.