Hi Pratyush Sharma,
thanks for your help.
it fails on Apple MBP Catalina and x64 Windows
enpass itself with webdav-Sync works fine on MBP, Win10, 2x iPhone and 1x iPad
because with 1Password 7.3.712 there is no export in .1pif-File, i try it with 1Password 4.6.2.626.
screenshot is attached, but its the same like @Area from July 2019