About trap 6 on macOS

[misha-plus]

Hello. I run v0.3.0 -- it is good. But on v0.4 I have following problem

Reading 235520.jpg...Ok
Reading scale2.0x_model.json...Ok
[scale2] %.1f%% - ELA: 0.0 - ETA: 00:00:01 - MEM: 596:31:23 Abort trap: 6

I fastly looked to the code it uses half precision but on my MacBook Pro Mid 2013 with HD Graphics 4000 there is no half precision -- can this be the cause of the error?