Some kerning is different between Sans upright and italic styles – should be 100% similar

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Problem description

In the string at, there is slightly different kerning between a and t in the upright vs italic styles in Recursive Sans (in the upright, there is a -30 kern, while the Italic lacks this). It is a small difference, but it becomes noticeable if the styles are animated, or if at is repeated a lot:

Because this family is a uniwidth family, the kerning should be 100% shared in all proportional styles. It is almost 100% shared, but I should make a script to detect where this is not the case, and then correct it where needed.