Hello. i am a level 20 player with the last update of skyrim pc. i recently notice that i got some quests that the marker that belong to that quest is not shown on the map. i always use that quest marker to know where to go and etc' but now its just too hard. for exsampel. that quest "in time of need" i cant see that quest marker that belong to it. and yes i have mark it in the quest options. and there are some other quests that not working. i don't know where to go. i love this game and happy to buy it but now there is no fun and i cant enjoy the game. please help me about this problem. i know i need to find a redguard women but dont know where to find here. no mather how much time i enable the quest. other quests are working and some other are not. please help me. thank you.

Most quests will have markers, but a few (and some parts of quests) won't have any. That can be an oversight on the part of the developers, or a bug, or because the quest has no specific location. It's not a common thing, by any means, so don't let it turn you off the game.

In the case of "In my Time of Need," I think it's supposed to get you to look around Whiterun for the woman in question.

If you are using a modded map, the problem could come from there but yes, in In my time of need, you must find the woman by yourself. There are not that many Redguard women in Whiterun, so it shouldn't be a problem.

Some quests have no quest markers by design, usually for part of the quest only.
In My Time of Need is one of these, in the beginning youre supposed to investigate for yourself.