Fixing TV Values That Reset After Updating Evolution CMS

A particularly dangerous update bug is the one that looks random: the page opens, some TVs still have values, but certain multi-select or checkbox TVs reset on load or after save. In the original case, only specific fields such as color, gender, and series were affected.

That pattern usually means the issue is in the field type handling rather than in the resource itself. Multi-value TVs are much more sensitive to formatting, separators, and widget compatibility than plain text TVs.

What to audit

• the exact TV input types involved,
• whether their stored values still match the expected format,
• recent manager or widget updates that changed how values are parsed,
• custom plugins that manipulate TVs during form render or save.

The important rule is to stop bulk editing until you know why the values are disappearing. A TV-format mismatch can silently wipe real editorial data if editors keep saving pages normally.

When only specific checkbox or multi-select TVs break after an update, focus on field parsing and manager compatibility first.