Exchange: not installing properly from Store on Pallas-Yllästunturi

On XA2, Pallas-Yllästunturi

  • Install Microsoft Exchange from Jolla Store. (Had not been installed before.)
  • This seems to be done properly, except installed version is 0.
  • Right away a notification pops up: Update available.
  • Installing the update provides an error message, installed version remains 0, update still available.
  • After deleting and installing again, the same problem pops up.

If you want me to provide logs, I will be happy to. Please specify where to find them.