VSE Proxies: transparency and recreation

Hello dear Blenderheads,

a couple questions about the VSE…

  • I use proxies, the problem is that overlayed text (RGBA PNG), works fine in rendering and in the realtime preview windows, but when it comes to the rendered proxy, the alpha is not taken into account and the text background is no more transparent.
  • couldn’t find a way to clear proxies and regenerate, is there any well hidden button / options?

thank you in advance, have a nice day!

Proxy only uses jpeg, jpeg doesn’t allow for alpha channel. Sorry