in Confluence we have a site with linked issues from Jira (v. 6.1.5) with the JIRA issue macro.

A jira-custom field for eg. "verantwortlicher BL" (in germany it´s the Section Head) but in confluence will be displayed "Verantwortlicher Bl" (width capital V and lower L).

The main problem here is:
"Bl" (with lower L) looks like
"BI" (with capital i = short name for Business Intelilgence.

Any word from a jira custom field will be displayed in the table header in Confluence begins allways with capital letter, rest with lower letters.
That´s not correct.