- Closes#1818
**Why add this?**: A repeated pattern is that an issue is fixed in the
card, a new build is released and users will incorrectly believe it's
not yet fixed due to their browser caching the old code. This results in
wasting their time, and my time.
**But it's obnoxious!**: I'm pretty sensitive to this (hence adding
these messages!), so let me know how terrible you find it. You can
disable it with:
```yaml
performance:
features:
card_loading_indicator: false
```
* The `low-performance` profile itself had parse errors: fix them!
* Do not silently swallow override parse errors, they are always a user issue
* Minor error message rendering improvements to show multiple pieces of context
Dermot Duffy