[Warner306]

just to start, update to latest version madVR v0.87.21, then try to reset your settings on madvr to default with "restore default settings.bat" then you have to ensure that "delay playback unil render queue is full" it's enabled in madvr, manage the change refresh only by kodi
with all my systems that i tryed with madvr + dsplayer never happened that the video start during change refresh with "delay playback unil render queue is full" enabled

for the crash you have to download the related pdb file in the first page rename it in kodi.pdb and put in the kodi dsplayer installation folder... when the crash occurs before to kill the process you have to press CTRL+ALT+SHIFT+PAUSE (on some keyboard it's named as BREAK) after few secs on desktop should be created a madvr freeze report, something useful could be in there

Ok, I installed DSPlayer 15 beta 1, madvr v0.87.21, restore default settings, let Kodi do the refresh change, enabled "delay playback until render queue is full".
No more problem at video start.

I still got some crashed at video end though (black screen), and doing CTRL+ALT+SHIFT+PAUSE do nothing (nothing added on my desktop)

I see this in the logs at each video start :
WARNING: CXBMCRenderManager::Configure - queue size too small (2, 0, 0)
Is it normal?

And at video stop I have a bunch of those :
23:14:35 T:5464 ERROR: CD3DTexture::Create - failed 0x80004005
23:14:35 T:5464 DEBUG: CDXTexture::CDXTexture: Error creating new texture for size 128 x 98

I would send the complete debug log to aracnoz in a private message. I like to paste the log to Pastebin, but you can do as you wish.