Maximum Window Limit?

Hello,
I just wanted to ask if there is a maximum window limit for HotKeyNet. I have been using this software for a few days now, but I am having problems running 27 windows. If i give a command to all these windows, it sends it only to 25 windows, but two of them get the command twice, so that 2 windows are left out where HotKeyNet doesn't act at all.
I looked in the log that is shown in the Application, and it seems there is some error where the name of the window it sends to doesn't match the window it actually ends up:

<sendwin "RoM1"> completed: Window found. Target set to 0x1303E4 "RoM19"
<Key LAlt F4> completed
<wait 200> completed: 200 milliseconds
<sendwin "RoM2"> completed: Window found. Target set to 0x1006C0 "RoM27"
<Key LAlt F4> completed
<wait 200> completed: 200 milliseconds

for the rest of the windows named RoM3-RoM27 it works fine (ignoring the fact that by the time Alt+F4 is send to RoM19 and RoM27, they are already closed ^^), just these 2 always mess up somehow.
Any help would be much appreciated :)