Hello, there seems to be an issue at the moment with skill checking in abilities like Tieweaver's "Mass-relation altering", which checks against the caster's Social skill. Supposedly, you need a skill level above 10 to successfully cast the regular success version of this skill, however if the Social skill is at 15 or above, a message will pop up explaining that the ability failed because you need to possess 10 Social skill or above (shown below)

https://i.imgur.com/BO8e66L.png

However, if the pawn's Social skill is between 10 and 14, the ability activates without any issues (shown below)

https://i.imgur.com/ctCKp3n.png

Looking into it a bit further, I checked the Def files of your mod and it appears the following lines are present for the Mass-relation altering ability:

• <skillRequirementSuccessThreshold>10</skillRequirementSuccessThreshold>
  
• <skillRequirementGreatSuccessThreshold>15</skillRequirementGreatSuccessThreshold>

Given this, there's a fair chance that whichever function is checking the skill level for ability success purposes, will fail to pass when the skill level is above the required threshold for Great Success but the roll only allows for regular success

Hopefully this will provide all the necessary information to help with the fix, but feel free to let me know if you'd like more information