So, I've tried several times to use radial and circular blurs but they are almost never rendered to the exported clips. On the program display, it seems they are applied and working fine.
Always, the portion they are applied shows black in the exported clips.
I tried these effects in multiple different settings.
25fps vs 30fps vs 60fps when taken
25fps vs 30fps vs other constant frame rate vs variable frame rate (or default) when exported
orginal copy vs rough draft (or edited & exported once or twice already using Videopad or another)
direction of movements of camera
speed of the clip (faster speeds)
speed of the movements of camera
type of camera (drone vs GoPro Hero)
size of files (resolution of clips)
zoom
Interestingly, all showed black except the following condition.
Drone, 25fps & 1080hp hyperlapse without any processing or editing (original) --> If any of these conditions doesn't meet, the clip shows black.
If I just export the above mentioned clip as it is from Videopad and then again open the file in Videopad, the rendering doesn't occur in the exported clip.
So, my conclusion so far is possibly it's related with frame rate. But, I doubt it! Cuz I remember when the effects were successfully applied randomly.
It's like 1 out of 100 clips shows the effect kicks in. By the way, I am always dealing with 4K or sometimes, 2K.
I do need radial blur!!!!!!!!! Any helps please. All other effects work just fine without noticeable issues.
Buttom line is..
I need to know if I am missing some crucial information regarding the effects (any settings, conditions)
or it's a problem of the software I got so I need to download it again and then it should work.