I'm sorry, I wanted a full plugin list, as well as the plugin versions.
Viewing post in Bug - RMMV DTB linked function broken
Noted, I will take a look later and send a list of plugins by editing this message.
EDIT: Here is the list in my test game:
1. YEP_CoreEngine v1.32
2. YEP_BattleEngine v1.51
3. YEP_BattleStatusWindow v1.09
4. YEP_SkillCore v1.13
5. YEP_ItemCore v1.30
6. YEP_EquipCore v1.18
7. YEP_WeaponUnleash v1.05
8. YEP_StatusMenuCore v1.04
9. Jay_DualTech v3.2.4
10. YEP_KeyboardConfig v1.04
EDIT 2: I tested it with battlers in different order, in the latest case, battlers 1 & 3. The linked skills worked, but battlers 2 & 4 are not acting correctly - I tried to select "Attack" for both, and if I select for 2, battler 4's action gets cancelled and vice versa. In the end, the linked skills worked, but then I had to skip turns to get the actions executed, and in the end, only either battler 2 or 4 could take actions.
EDIT 3: I cannot quite replicate the same issue from my initial posting, but the issue in EDIT 2 of this message keeps coming up in my new test game, so perhaps I had some other plugin compatibility issue. Nonetheless, there is definitely a linked skill issue as the error in EDIT 2 keeps coming up as long as I am using a linked skill with 2 battlers. With a linked skill that links 3 battlers, the 4 battler could select an action without problem. However, whether the linked skill is with 2 or 3 battlers, as long as another battler is selecting an action and executing it, the linked skill will not execute. To summarize the issue I face in the new game with just the above list of plugins when skills are linked:
a. linked skills does not execute despite being selected as long as another battler has an individual skill queued
b. not able to select actions for battlers using individual skills without them cancelling one another