R# 2021.1.4 seems to have reintroduced the problems with the parameter name hints:
Both screen-shots were taken from the same session. In one tab, the space for the hint is present, but the hint is not shown. In the other tab, the hint is shown, but overlapping the parameter value.
R# 2021.1.4 Build 211.0.20210706.71525
VS2019 Version 16.10.31424.327