Same error on my side too. Had issues while updating cryosparc (Improper usage error while creating user) and after that got resolved, importing a project does not work. The workspaces are populated without any jobs in them. The log looks almost identical to what is posted above by @mannda
UnicodeDecodeError: 'ascii' codec can't decode byte 0x89 in position 0: ordinal not in range(128)