REFRAIN from entering wagers using .19 if you've got it.
Bill just helped me spot a bug in it introduced with the addition of the extra tags. When you ENTER a wager there's a (good) chance that the tag you select won't actually be what gets assigned.

Again this is a NEW bug introduced in version .19. Tags applied to wagers prior to .19 are ok.

Update -

The only time this bug will effect you (if, AND ONLY IF, you have build .19) is if you have GAPS in your wager tags. What I mean by this. Go to:
Tools Menu->Wager Tags

This lists all of your wager tags, and any available slots. An available slot will either be blank (first time you run ES .19 and beyond), but will most typically be labeled "no tag". A "gap" would be a 'no tag' followed by a valid tag that you entered.
For example:
Tag1
Tag2
no tag <----- THIS IS A GAP
Tag3
Tag4

So, if you are using .19 and you assigned wager tags, the only way this bug will bite you is if you assigned a tag from "beyond the gap" as described above.
There should be a version with the fix available tomorrow.

No concrete word back on whether .19 is good to go yet either for those waiting on confirmation that the new wager tag stuff didn't introduce other nasties.