Performance Calculation Errors

i am guessing this is already a known issue, but the stats on my system are reporting 5000% errors in annual return and slippage. more may be wrong too.

Yes I noticed also; Isonomy Plus was showing some way-off stats last night. Back to normal now.

This glitch happens very occasionally. So far I have only seen it when markets have been closed. Usually it is immediately obvious that there is a glitch and that the figures are not real.