Please upgrade NewTX to 1.726 (dated 2023-08-25). The following two problems are resolved there simultenaously:
- Two letters ij are not combined into the digraph ij; cf. http://tex.stackexchange.com/questions/652108 .
- No excessive right-side bearings of the double-struck Latin capital letters; cf. http://tex.stackexchange.com/questions/693633 .
This upgrade is not urgent, and I personally do not care whether the upgraded package would land in unstable or experimental.
Gratefully,
Alma