Good Luck in fixing this! 6 Months is quite some time, maybe offer some kind of generous compensation - tour day through LWD studios or so
Btw just a suggestion - some developer studios do some "focus feedback sessions" maybe it might be even worthwhile to pick one hot topic to gather ideas / feedback and ideas to tackle the issue with the goal for you to get some more ideas from a different perspection. Some dedicated topics that I could imagine would be for example how to organize the ribbon bar and what functionality it should offer
