We receive some reports legacy wallet earlier release users cannot sync fully. Those still using 1.7/x or 1.8.1 and before. 1.8.5 version has no sync issue. https://github.com/deeponion/deeponion-legacy/releases/tag/v1.8.5
Better to use the latest wallet release of 2.x branch by upgrading https://github.com/deeponion/deeponion
https://github.com/deeponion/deeponion/releases/tag/v2.0.4.1
Modern code base 2.x release has many advantages.
You can open support ticket if you have any difficulty in upgrades DeepOnion mod team can support you 7/24. https://deeponion.org/community/support-tickets/open