How to bake buckwheat bread?

[Water - 300 ml;Vegetable oil - 2 tbsp. lies .;Salt - 1 tea. lies .;Sugar - 2 tea. lies .;Wheat flour - 300 g;Wheat flour - 100 g;Dry yeast - 1 tea. lies.The mode was set by the 1st;The crust is dark;Weight - 1.5 LB.]

Hello! I'm new to the forum and don't know where to ask my question. My bread maker is Alaska-BM2600 or rather Tarrington Hause. Yesterday I already asked this question in the Alaska-BM2600 section, but they haven't answered me yet, so I decided to ask my question again here. A few days ago, I baked buckwheat bread. Here is the recipe, which I took from the packaging of buckwheat flour:
The recipe on the package is as follows:
Water - 300 ml;
Vegetable oil - 2 tbsp. lies .;
Salt - 1 tea. lies .;
Sugar - 2 tea. lies .;
Wheat flour - 300 g;
Wheat flour - 100 g;
Dry yeast - 1 tea. lies.
The mode was set by the 1st;
The crust is dark;
Weight - 1.5 LB.
Water, however, poured 350 ml, also added bran 2 tbsp. spoons. I didn't know how to measure buckwheat flour for me. On the Internet I found that in 1 st. lies. 25 grams. 100 g, which means = 4 tbsp. spoons. Wheat flour was measured with a special sifting mug (shiny metal with two marks 125 g and 250 g, and if at the very edge, it will be 300 g). Buckwheat flour 4 tbsp. spoons (white measuring, which was attached to the stove) seemed to me not enough, but left everything as it is. The bread turned out to be not bad, tasty. Yesterday I baked and measured the flour with a cantor. It seemed that the flour was too much, but did not take it away. I put the stove on the timer and went to work. And in the evening, when I looked into the stove, I was very dumbfounded! The bread did not work at all. It was just a dry flour mixture with a thin baked bottom crust. It turns out there was not enough water or a lot of flour all the same. On the Internet, they write that in 1 tablespoon it is 25 grams, then 12 grams. I don't understand anything anymore.
Today I decided to try baking bread again. I took a full sifter mug (300 ml) of wheat flour, poured buckwheat flour into the sifter just below the level with a mark of 125 g. In theory, this is 100 g. The special water was measured. a 240 ml measuring cup that came with the stove. I put everything in the mold, turned on the stove and began to observe the kneading process. I see that the dough is not kneaded, since there is little water. I began to add water. As a result, the total amount of water was 460 ml. Then she turned off and rearranged the mode from 1.5LB to 2LB in order to bake. Right now my stove squeaked, I'll go see what happened. I pierced the bread with a stick, it doesn't seem to stick. It looks beautiful. I think he should be like that - with one tsp. yeast has risen not to the very edge, but somewhere 7 cm below the edge. Maybe you need 2 tsp. yeast for such a quantity of flour and water? When the dough was kneading, I touched the bun, it seemed a little tight to me. maybe more water was needed, not 460, but 480, for example, or 500 ml?
Who will tell me if you measure flour with measured specials. a 240 ml glass, which is attached to the stove, how many glasses do you need wheat flour, and how much buckwheat flour, if you take water, as indicated in the recipe for 300 ml? And then I'm completely confused with the calculations, proportions.

Buckwheat bread (Ksyushk @ -Plushk @)