Eos v3.2.3, Fixture Lib 3.2.4.1
GLP Impression X4 High Res profile has the wrong pan and tilt ranges. According to fixture documentation, Pan 623° and Tilt 242°. https://www.glp.de/en/products/impression-x4?y=0 Click on "Technical data" and scroll down to "Effects". With the wrong P/T ranges, it's impossible to do FPE calibration for these fixtures.
The P/T Ranges are likely wrong for all modes of this fixture, and likely also wrong for all modes of GLP Impression X4 XL and Impression X4 S, but I don't have time to check.