TimeToX not correct (cTrader v5.0.21, Algo v1.0.9)

Hi Team,

TimeToX is not working correctly as noted in the screenshot, bugs:
1. Variable a and d contains different datetime but results are same. 
1.1. You may think that variable_a contains LastBar which is off chart and mouseX having 3914 is/or-should-be equal to Chart.Width but this is not the case, both values are different
1.2. All variables (d, e, f)  should have same value as being lastvisiblebar, isn't?

Overall expectation is TimeToX correctly calculates X value when there are Bar weekend gaps and assumes past and feature also.

2. Variable g and by FirstVisibleBar, x value should be 0 or 1, but nothing higher

Related info:

Thanks,
TomasM