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After Catalina (Mac install) HP scan stops working

HP ENVY 7640
macOS 10.14 Mojave
HP Recommended Solution: HP Easy Scan is not currently supported in macOS Catalina. Click here


Today I've upgraded my new Mac (27 inch) with Catalina. Since then HP scan (wireless) stops scanning on the second paper. HP scan just stops and keep saying "preparing scan".
I'm stuck.

The following has evaluated to null or missing: ==> page.context.thread [in template "gz-hp.custom.reply.metoo" at line 4, column 22] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (!myDefault, ( ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #assign threadId = page.context.threa... [in template "gz-hp.custom.reply.metoo" at line 4, column 1] ----
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