Strange Battery Behaviour

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Participated in an Axle grid event last night which discharged my battery to the 10% min soc.
By this morning the battery had dropped to 5%.
Once solar started to be generated, 100% of my solar went into charging the battery and 100% of my home use came from the grid.
I thought this must be a quirk of the battery being below 10% but on checking the battery later (when at 16%) I noticed this was still occurring.
I thought I'd try and force the state to end by setting my max soc at 17%. Sure enough when 17% soc was achieved, the battery stopped charging but solar generation went to 0 and 100% of home use was still coming from the grid.
On returning the max soc back to 100% the problem resumed where it left off i.e. 100% solar generation going to battery, 100% of home use coming from grid.
How do I get the battery to start being used by the home again?

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Just uploaded a screenshot to summarise the behaviour