I received an app created in WAB2.8 (developers edition). The last version I had installed was 2.4... I upgraded to 2.9 but struggle now to import the 2.8 app. The direct import as a zip file fails without message.
I thought of installing 2.8 and upgrade from there but also can't find old installation files anywhere.
Thanks for any support.
When importing an app fails there is a simple workaround you can use.
That's it now you have that app running in that WAB.