Yes. That is probably due to a compression made to host 0.2.5 here locally at itch.io. The 0.2.6 is uncompressed so that issue should not happen.
Viewing post in Echoes - Cards of Destiny comments
I bought/downloaded 0.2.6 and tried to continue from my prior saves, both at the start of and just after the Lilith Footsoldier fight. I'm getting error messages shortly after loading both saves. Not the red screen, but the grey exceptions screen that has lines of code-like text and the option to continue at the bottom of the screen...except it won't let me continue. Do I have to start a new game for it to work??