No. There are no limitations on the use of isoglucose/HFCS in the EU food industry at either EU or Member State level. Any country in the EU is free to produce, trade (import/export) and freely use isoglucose/HFCS, just like any other type of sugar.
The EU applies the same rules for the use of all sugars, independent of their origin, whether it be wheat, sugar beet, sugar cane or maize. Their use is not restricted and they must be clearly listed as ingredients on the ingredient label (in the case of isoglucose/HFCS they will be called by their correct labelling terms, either ‘glucose fructose syrups’ or ‘fructose glucose syrups’) and as part of ‘total sugars’ on the nutrition label.
Prior to 1 October 2017, there did exist restrictions on the amount of both sucrose and isoglucose that EU member states could produce (but not the amounts the food industry could use) under the EU sugar quota system, but these restrictions have now been lifted.