And me again,
Is there anybody listening (or reading)???? Are there further problems with the new WA version or am I writing this only by myself??? Whatever...there are the latest news....
I have indentified, that the breakdowns are an effect of the not funktionable videopreview. Everytime I open a chat with a video, WA stalls, ends and never refreshes.
I have contacted Kris at the support of WA (many greets) and she/he has sent me an address where I have send my log to (now they know everything about me but not the colour of my socks!!! I wear no socks

..!!)...the developers of WA are going to find the solution (what a support!!)
My solution for the time:
Change the settings for "Media Auto Download" in WA settings- deselect the video option everywhere and don´t have the idea to select the downloadbutton at every video you have been sent and don`t send any videos next time!! This will yield to ...you know!!
If you want to chat with a person who has an video in startposition of your chat:
1. If you want to save this chat (only written informations), select this person in the favorites by scrolling the list (NOT TIP ONLY ONCE AT THE PERSON, THIS WILL OPEN THE CHAT...CRASHES WA), press "Optionen", select "Einstellungen", select "Chatverlauf", select "Chat-Verlauf senden" (informations in "..." in german, because I have no idea how the translation would be)...send it per e-Mail/bluetooth to yourself- then delet this chat and start a new (WITHOUT VIDEOS!!!).
2. If you don't want to save it...delet and start a new chat!!!
Pfiat Eich dawai (see you later)
DaLanghaarade (the longhaired man)