The comma symbol renders with a correct position in the editor build (the left image) but not in the bob or bundle build (the right image). And it does not depend on characters, language or texture compression.
Try to overlay these two screenshots and it becomes clear that it is the comma shifting inside its container:
Sorry about this. There are some discrepancies in how the editor and Bob creates the font file. We plan to replace the work done in the editor by using Bob to get the exact same result. But in this case it seems like maybe Bob is wrong. Could you please create a ticket on GitHub?