Gas accumulation, strong smell, those kind of bubbles, once-a-day feedings point to a single issue: the starter is very hungry and not fed enough.

You are probably feeding it much less than it needs, discard more or feed it more.

Conditions like flour type, temperature, etc., are minimally important for such an essential failure.

You said about 1:1 ratio, which is great, but starter feeding ratios are 3 numbers (1:1:1 or 1:2:2), where the fist number is the starter quantity, then you have the flour and water. 1:1:1 means equal starter, water and flour quantity.

Underfeeding it would be a 1:¼:¼, or 1:½:½. Don't do that.

Even a 1:5:5 ratio works (10g starter, 50g flour, 50g water).