I'd suggest you to first try exporting your data using some serialization mechanism (STON or JSON for a textual representation, or fuel for a binary one), to avoid losing any of it. I just realized that all of the data is generated against the contents of only two OrderedCollections. I tried extracting to STON, and it works just fine.. so regenerating the data is super super simple.. What version are you on? Is that a unix or osx? Your vm seems from last june. Pharo 6.0 Latest update: #60546 MacOS 10.14 Thanks! ---- peace, sergio photographer, journalist, visionary Public Key: http://bit.ly/29z9fG0 #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.codeandmusic.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101