Uneditable segments with tags only can lose content on export

In the original (Word) document there are segments containing a character formatted with the Font "Wingdings 2" (xlf_before.jpg).  These segments don't show up in translate5 and therefore can't be edited (translate5.jpg).

After checkout the formatting tags are missing in these segments (xlf_after.jpg).

You can find the task on our main translate5 instance under the order number "TLR0167348".