Hi There,
already read a few of the forum hear for the issue on how to get the fields to go transparent. So for me, I use the transparent color #FFFFFF00 in a bar chart to use as a filter and frill through way on top of my CARD visual. It works perfectly as well when I published it. I only notice this issue when one of users messaged me that on their end (they are using Microsoft edge), all they can see is blue bars ( which is the default color for my PBI themes) so it looks the formula for using the transparent code measure as the format color for the bar chart is not working.
Tried clearing cache but it still didn't work. Will report this as an issue for for Microsoft edge users