I've managed to replicate this issue when there's  2000> outstanding transactions. It has been reported as a bug however has yet to be acknowledged as such. A potential workaround would be to reduce the number of outstanding transactions by e.g. doing and posting smaller reconciliation batches. 

I was suspect that it was related to the # of transactions because I have never run into this before and this client has more cheque detail then most as they are not a heaving user of EFT yet.    I have replicated the problem with 417 o/s cheques - Web client only shows the first 80 but the classic client shows all 417.  Any advice on how I would get into the loop if a patch is made?

Once acknowledged as a bug, I don't believe it will regarded as a critical issue and therefore no HotFix. In such instances, the fix will normally form part of a regular Product Update with detail to be included in the relevant release notes.

Well, for our Web-screen only clients, we have to hope they don't encounter this issue anytime soon! 

Well, for our Web-screen only clients, we have to hope they don't encounter this issue anytime soon!