Shirley Yeng 

I don't know if the AI helped or not as you left it marked as a verified answer... but nonetheless I tested this with a clean TM in 2024 and I get these results:

Please confirm the following:

1. what version of Trados Studio you are using?
2. what other tools/plugins you are using that could be influencing what you see?  In fact, just what other tools/plugins are you using.

Shirley Yeng 

I don't know if the AI helped or not as you left it marked as a verified answer... but nonetheless I tested this with a clean TM in 2024 and I get these results:

Please confirm the following:

1. what version of Trados Studio you are using?
2. what other tools/plugins you are using that could be influencing what you see?  In fact, just what other tools/plugins are you using.

Shirley Yeng 

In fact I realised I used the same source for all three segments so did it again:

Same, correct result.

I don't use Trados 2022, but I have seen a similar report on that behavior either (with Trados Studio 2022 SR1 17.1.6.16252). Try to type the word "percent" instead of the % char for the target segment 1, confirm it and see what happens then. I bet you would get the % character for segments 2 and 3 even though you type "percent" for segment 1. This is not ok too but it happens in most cases. The real weird thing is that on some rare occasions Trados puts the word "percent" in segment 2 and 3 even when you type the % character in segment 1. I have seen only one case reported on such "reverse" behavior.

Scenario 1: When you have three similar segments that mention different values in %, if you type "percent" in the first segment instead of %, the repetitions (segments 2 and 3) would still end up with the % character overriding the word "percent". This happens in 99 cases out of 100.
Scenario 2: When you have three similar segments that mention different values in %, if you type the % character in the first segment, the repetitions (segments 2 and 3) would end up with the word "percent" overriding the character "%". I have seen only 1 report. This one is the second.

Trados Version：
Trados Studio 2022 SR1 - 17.1.6.16252

Plugin：
None

Shirley Yeng 

I don't know if it's relevant for your problem, but I think you should at least update your 2022 to the latest version:

Trados Studio 2022 SR2 - 17.2.12.19268
MultiTerm 2022 SR2 - 17.2.5.2838

Then we can start from there.