I think I've encountered a Monkersolver bug. Steps to reproduce
1. Open a sim & keep raising until one of the players is facing an allin
2. Click on the "Fold" header to open the Save As dialog and select Strategy and finally Copy to Clipboard
3. Paste it into a text editor. As you can see, the output is weird with lots of 0.5 and Infinity hands
4. If you check the hands in the filter, you'll see these are zero combo hands i.e. the player should not be holding combos of these hands
It seems to be happening only when in facing allin spots. All other spots appear to be fine.