Deletes not propagated through DropBox sync

In OS X 1P 4.3.1.BETA-3, my "All Items" total is 294. In iOS 4.5.1b2 (and recent earlier betas), it's 340. This discrepancy has been there for quite some time; I only just really focused on it.

I expect "sync" to mean "all copies have identical content (once the dust settles). Is that a misunderstanding?

I hunted down one of the 50 or so differences. It has some odd recent history:

1. For a while, perhaps because I was running two 1Password mini processes (now fixed), I found that go-and-fill failed mysteriously after a password change. Worked fine to begin the process (I was de-Heartbleeding), but when I tested the result, the login was rejected.
2. In that state, copy/paste of user name and password out of 1Password (app, or mini edit panel) did work, yet go-and-fill did not.
3. The "odd" one discussed here is one that I changed (on the Mac) yesterday, and ran into the "go-and-fill failure."
4. I had also found that creating a new login entry, with a new name, for the site resulted in working "go-and-fill"
5. I had done that for the "odd" one we're discussing.
6. Subsequently, I disabled the extra 1Pmini (disabled the MacStore one, left the BETA one).

With that history, I find that the Mac 1P has only the new entry, while the iOS 1P has both old and new.

Given the joys of Heartbleed, I can easily believe that the 50 or so "All items count" discrepancy is made up entirely of entries with similar history:

1. changed p/w
2. go-and-fill failure
3. created new entry
4. deleted old entry

1PAnywhere/Dropbox (local to Mac, at Dropbox.com) agrees with the Mac.

1PAnywhere/Dropbox (iOS) says

Problem loading 1Password data file. 
A key data file could not be loaded and
1PasswordAnywhere cannot continue without
it.
Please see this help guide for troubleshooting
tips.

The linked tips say to click on the linkified phrase "key data file" to see if the file is actually there. Clicking the link does nothing. Holding the link lets me copy the link target, dbcache://dropbox/392287/1Password/1Password.agilekeychain/data/default/encryptionKeys.js. iOS Dropbox has that file, 5.8KB, "modified 1 year ago". OS X Dropbox has that file, 6KB, modified 9/6/12 (a year and a half ago).