having a problem with WoT Viewer crashing when trying to load the 8.9 test client? Here’s a fix by ghool. Tried it, it works.
“It works perfectly (atleast so far) if you only copy the customization.xml from 8.8 version’s res\scripts\item_defs\vehicles\
Remember to make backups of the folders so you do not accidentally screw up the client for when you wish to actually play on test server.”