I recently updated to Wireshark 2.6.3 and noticed my Display Filter buttons (in the upper-right hand corner within Wireshark) were duplicated. After doing some fiddling within my profiles directory inside Wireshark, I noticed a new file caller dfilter_buttons. This file exactly matched the Filter Expressions (format of gui.filter_expressions) within the existing preferences file within the same profile.
When I deleted all the entries within the dfilter_buttons, then there were no longer any duplication on my Display Filter buttons within Wireshark.
Has anyone else seen this behavior? Should I enter a bug for Wireshark? Any recommendations to use the "dfilter_buttons" file or the Filter Expressions in the preference file?