So,this is not a bug. Was practicing C3 runtime in the r120.
I tried to tackle with the new memory load/unload actions and broke the game with "Unload unused images from memory". I (rather) quickly isolated the problem and repaired everything i did wrong.
I guess that i would really like memory usage documentation and/or a tutorial.
Because i don't know how to use it properly, but it seems like an extremely good feature. And i want be experienced enough to use it.
Also, could you please update the Text manual for new C3 features (i mean available bbcode commands and those cool text shuffle effects from blog post)? As for now it can be found in the forums, but the first place people are looking for it is documentation.
Thank you in advance, 
Ashley