It is hard to say about problems. I think that administration of the project simply cannot find the best time for listing of tokens and can not announce about listing.
No need to look for a best time for listing. Need to do a project. If the project is in demand, the listing will be successful at any time.
I agree that no need to look for the best time, because nobody knows when it will be a good time, but before listing it must be a ready ecosystem of the project, otherwise the price of the tokens will fall.
From another side if to start listing when market falls the price of the tokens will fall after listing starts. And it if very hard to predict when price of the tokens will raise.