Viper combo broken after emergency fix patch

Date & Time: 06/07/2024
World name: Ragnarok (Chaos)
Character name: Mathilda Hill
Class/Level: Viper 89
Steps:
1. Start steel fangs or Dread fangs combo
2. Follow combo procs until Death rattle
3. Start Steel fangs or Dread fangs combo again
4. Sometimes when pressing only available next combo skill, combo resets and doesnt continue to death rattle
5. Start dreadwinder combo
6. Use Hunter's coil or Swiftskin's coil
7. Click the next available combo skill, either Twinfang bite or Twinblood bite
8. The second Twinfang bite or Twinblood bite (that was not just used) is not available as a combo
9. This did not appear Steel maw or Dread maw combo

This bug is not consistent and i confirmed that correct skill was used. Combo was not broken because incorrect skill was pressed.
There were no issues prior to emergency patch