The issue is identified in the initialize function of the StableAsset contract.

Within this function, there exist two checks that exhibit redundant logic:

require(
    _precisions[i] != 0 && _precisions[i] == 10 ** (18 - _decimals[i]),
    "precision not set"
);
require(_precisions[i] != 0, "precision not set");

Given the conditions set by the first require statement, the second require is always satisfied if the first check passes.

Recommend removing the redundant require check.