Since 120 and now in 121 i've not been able to optimize or run any walk forward in either the retest, optimisation, or even projects. SQ will load strategies as normal and when i run them it runs for about 10 sec and then says finished, but there are none of the usual out puts only the original file. Ive tried current strategies and old one to see if there is any difference. Id just started using the multi chart option so i thought at first it was to do with that as in 119 everything in that section was working, it was only when i changed to 120. But even 120 there is no difference. Around the same time i did try that Java Zulu but have since un-installed it and started using File View Plus 3 from windows to view some files. don't know if that has anything to do with it.