1Password Search doesn't find an item but I am able to access it via the vault's event history

ks1p

There is no limit on items stored in vaults that I have ever encountered. Though vaults with extremely large amounts of data might not surface results so easily. In my mind the more data you have the greater the chance the search might miss a result especially if it has not been used and is new. Can you elaborate on the size portion? Typically, logins are small. Perhaps you attached a document? If your vaults contain large amounts of data I could see where the item might not be returned in the top search results as 1Password searches the vault. Did you expand the results to all?

Because you mentioned this item was larger in size it may be that the item had not synced with the application at that time. It may not have synced to 1Password.com and was in the process of uploading. Occasionally, folks will shut down their computers and this will halt an upload. Which seems plausible here. Once 1Password is unlocked it will resume syncing and then you should be able to locate it.

I'm glad to hear you item is where you intended it.