When trying to use a siege repair kit on a siege weapon, taking ANY form of damage (even DoTs) causes your character to abort the repair, making the kits useless when facing any kind of defence.
This is not consistent with pre-Murkmire behaviour.
PC/NA — Daggerfall Covenant — BGs, Kaalgrontiid
Kalazar Chalhoub — Redguard Nord Stamplar
Kalaron Caemor — Altmer Magsorc
Kalahad Cirith — Dunmer Magden