Confusing results with step sequencer plugin

[Acrilix]

I recently bought Tactic by Glitchmachines, a sample based step sequencer vst.
In order to hear it play I insert a blank 1 bar into its track. For some reason that is beyond me it plays this one bar as 6 bars and then stops! If I drag out the 1 bar blank to 8 bars it plays 13 bars and then stops... 6 bars for the first bar and then 1 each for the following 7.
Anyone know what is going on or if there is any way to stop this? I am limited to a minimum of 6 bars at the moment unless I mix it to audio and then trim it down.

[Acrilix]

I just tried using Drumburst by HGFortune in my Mixcraft 9 Pro. It doesn't need a blank bar to play in sequencer mode....you can just click play on the plugin, but I put one in anyway and clicked 'Mix to new audio track' and it again creates a 6 bar audio file, albeit with a missing first beat! As this is happening in 2 different vsts I presume that its Mixcraft that is at the root of this behavior.

[Acoustica Greg]

Hi,

Which build of Mixcraft are you using?

Greg