Always start the SCB as an error block
@@ -1454,6 +1454,8 @@ void compress_block(
// Set SCB and mode errors to a very high error value
scb.errorval = 1e30f;
+ scb.error_block = 1;
+
float best_errorvals_in_modes[13];
for (int i = 0; i < 13; i++)
{
