That's no surprise really. That actually explains your double warnings/range frames. I should have caught that sooner.
VEM is mostly a ripoff of our work but with modifications (some decent ones sometimes, although their coding leaves much to be desired, it's horrid). I did ask them to change any code that would interfere with or break DBM in any way though. Looks like they haven't done that with timers yet.
I'm not very happy with the amount of work VEM copies when I slave 16 hour days on ptrs to give users boss mods for new patches and they copy my work, modify it a little, then ship it out. Sigh. Of course, our current license permits this since it's creative commons. I actually took some feature ideas of theirs back for DBM at one point (license works both ways) so we actually got something out of the deal instead of nothing. Of course, we didn't like their code so improved upon it quite a bit for anything we integrated
In 6.0, I may be releasing future mods separately from core package, so they can be under a new license that prevents plagiarizing.