If i changing config\thaumicaugmentation.cfg file and adding this lines, I got debug messages that its not working:

S:FractureDimList <
    0=35
    -1=15
    1=10
    7=5
    17=5
    20=5
    111=5
    66=5
    101=5
    102=5
    103=5
    105=2
    106=2
    108=2
 >

debug.log:

[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 17=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 20=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 111=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 66=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 101=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 102=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 103=5
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 105=2
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 106=2
[Server thread/DEBUG] [thaumicaugmentation]: Invalid FractureDimList dim entry, dim not present: 108=2

The dimensions 101, 102, 103, 105, 106, 108 was added by AdvancedRoketry mod.
I can see them by executing /forge dimensions:

It looks like there might be an issue with it not finding dimensions in singleplayer if the dimensions are not loaded - if you load one of those dimensions and then change the config (something like client/ReducedEffects that doesn't require a world/game restart), it should print those messages out again. Is the dimension you loaded still in the list when that happens?

I tried to do what you suggested, but im not sure if i understand you correctly:

1. I loaded game, no TA dims errors
2. I loaded world, Invalid FractureDimList dim entry, dim not present errors for dims -1 1 7 17 20 111 66 101 102 103 105 106 108
3. I used command /tpx 101 to teleport to Venus.
4. I changed client/ReducedEffects
5. Now debug.log have Invalid FractureDimList dim entry for thisdimensions: 17 20 111 66 101 102 103 105 106 108.

As you can see, dim 101 is still here even if im currently inside it

You did everything right, and it seems the issue is separate from what I thought it was (you can see dimensions -1, 1, and 17 are not in the second list, but dimensions like 101 are still there). At this point it's just a bug.