User Manual LG Electronics WT-H9556 Top Load Washing Machine

If this did happen I would turn it off and on and start just that cycle again. Hardly ever happens.

If you follow the instruction on page Washing Program from the owner's manual it did say:
Step 1: power on
Step 2: Press the Program button few times until it selects the Wool setting
Step 3: add the laundry
And so on ...
I personally never use Wool setting and can not comment on the result of this setting. To get what LG claims it does is best to read and follow the instruction on the menu carefully and pay attention on the order of each step

I think it is the design of the filtering system leaving fluff or lints on clothes. I found it frustrating too. A way to minimise this problem is to wash clothes with like colours and sort out towels, flannelette from synthetic fabrics and use liquid detergent.

I use powder detergent, but this is just a personal preference. I really don't think it matters.