As of now Ascension is working with all armor mods except dynamo, is there anywhere mentioned its a known bug?

It shouldn't be. Cool I guess, hopefully the full suite of mods/perks will work in a couple weeks.

It should work. I am talking about Twid before EOF launch - https://www.bungie.net/7/en/News/Article/destiny_update_9_0_0_1 , bungie mentioned that Ascension would work with all armor mods in the EOF expansion. None of the recent twid have mentioned this bug or any fix regarding it.