I have an issue with Slicers - I have visuals in two different Pages.
Page 1 has a set of Visuals and a Toggle button that will send me to another set of visuals with Page 1 itself. The slicer on page 1 is coming from Table 1. Now I have another slicer on page 2 coming from a diff table that I need to carry forward to visuals across page 1. I have created relationships across these two tables and only enabling the sync not making it visible across these pages.
Now the issue is - as soon as I sync the slicer on page 2 with page 1. The slicer on page 1 is working fine However when I toggle to another set of visuals on page 1 the slicer on page 2 appears on top of the slicer on page 1. When I remove it the sync is disabled. Hope this makes sense.
Syncing slicers creates a copy of a slicer across pages, so I suspect what is happening is that when you use your toggle button, your "Table 2" slicer is being unhidden. You should be able to check this by opening your "Selection" pane. (View -> Selection).
Rather than deleting this slicer, click the little icon that looks like an eye in the selection pane. After you have done this, update your bookmark that relates to your second set of Page 1 visuals.
I tried the steps you mentioned - they work to some extent. However when I refresh the page and test it again with the toggle they again appear and are no longer hidden. I am sure I've updated the bookmarks for two viz within the toggle. Any idea why is that happening?
I've been using "Version: 2.76.5678.782 64-bit (December 2019)". I tried to download the latest version of February(I suppose) but unfortunately, the update was not available to my region (India) I believe.
I am sorry that I can't share the file with you because of privacy issues. But to reproduce this issue on your end - all you have to do is create two slicers of the same column coming from two diff tables Then put them in two diff pages and sync the slicers across these two pages. Please let me know how this works for you.